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10220211212020 = 2251015059510501
BaseRepresentation
bin1001010010111001010000…
…0011110000111011110100
31100012001011002110212222221
42110232110003300323310
52314421443032241040
633423033351332124
72103246234640555
oct224562403607364
940161132425887
1010220211212020
113290404874a27
1211908b4081044
135919b9833a44
1427493759632c
1512acb795474a
hex94b940f0ef4

10220211212020 has 24 divisors (see below), whose sum is σ = 21674942990568. Its totient is φ = 4047608400000.

The previous prime is 10220211211999. The next prime is 10220211212023. The reversal of 10220211212020 is 2021211202201.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3513240404496 + 6706970807524 = 1874364^2 + 2589782^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10220211211985 and 10220211212003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10220211212023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2529753231 + ... + 2529757270.

It is an arithmetic number, because the mean of its divisors is an integer number (903122624607).

Almost surely, 210220211212020 is an apocalyptic number.

10220211212020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10220211212020 is an abundant number, since it is smaller than the sum of its proper divisors (11454731778548).

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

10220211212020 is a wasteful number, since it uses less digits than its factorization.

10220211212020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5059510611 (or 5059510609 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 10220211212020 its reverse (2021211202201), we get a palindrome (12241422414221).

The spelling of 10220211212020 in words is "ten trillion, two hundred twenty billion, two hundred eleven million, two hundred twelve thousand, twenty".

Divisors: 1 2 4 5 10 20 101 202 404 505 1010 2020 5059510501 10119021002 20238042004 25297552505 50595105010 101190210020 511010560601 1022021121202 2044042242404 2555052803005 5110105606010 10220211212020