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10222101031220 = 22513172312692541
BaseRepresentation
bin1001010011000000010010…
…1100110110100100110100
31100012020000210111122120122
42110300010230312210310
52314434330330444340
633423545100551112
72103344123065541
oct224600454664464
940166023448518
1010222101031220
1132911945a7081
121191140b52498
13591c2b211660
14274a7656dbc8
1512ad78800db5
hex94c04b36934

10222101031220 has 48 divisors (see below), whose sum is σ = 24477537864528. Its totient is φ = 3552295741440.

The previous prime is 10222101031157. The next prime is 10222101031229. The reversal of 10222101031220 is 2213010122201.

It can be written as a sum of positive squares in 8 ways, for example, as 36543674896 + 10185557356324 = 191164^2 + 3191482^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10222101031229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1156341851 + ... + 1156350690.

It is an arithmetic number, because the mean of its divisors is an integer number (509948705511).

Almost surely, 210222101031220 is an apocalyptic number.

10222101031220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10222101031220 is an abundant number, since it is smaller than the sum of its proper divisors (14255436833308).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10222101031220 is a wasteful number, since it uses less digits than its factorization.

10222101031220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2312692580 (or 2312692578 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 10222101031220 its reverse (2213010122201), we get a palindrome (12435111153421).

The spelling of 10222101031220 in words is "ten trillion, two hundred twenty-two billion, one hundred one million, thirty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 13 17 20 26 34 52 65 68 85 130 170 221 260 340 442 884 1105 2210 4420 2312692541 4625385082 9250770164 11563462705 23126925410 30065003033 39315773197 46253850820 60130006066 78631546394 120260012132 150325015165 157263092788 196578865985 300650030330 393157731970 511105051561 601300060660 786315463940 1022210103122 2044420206244 2555525257805 5111050515610 10222101031220