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10220212120220 = 225997351239407
BaseRepresentation
bin1001010010111001010000…
…0111001110101010011100
31100012001011011012000210222
42110232110013032222130
52314421443300321340
633423033423020512
72103246245442434
oct224562407165234
940161134160728
1010220212120220
113290405335303
1211908b443a738
135919b9a9123b
142749377512c4
1512acb7a838b5
hex94b941cea9c

10220212120220 has 24 divisors (see below), whose sum is σ = 21464597926464. Its totient is φ = 4087674853056.

The previous prime is 10220212120189. The next prime is 10220212120243. The reversal of 10220212120220 is 2202121202201.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25420244 + ... + 25819163.

It is an arithmetic number, because the mean of its divisors is an integer number (894358246936).

Almost surely, 210220212120220 is an apocalyptic number.

10220212120220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10220212120220 is an abundant number, since it is smaller than the sum of its proper divisors (11244385806244).

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

10220212120220 is a wasteful number, since it uses less digits than its factorization.

10220212120220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51249389 (or 51249387 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 10220212120220 its reverse (2202121202201), we get a palindrome (12422333322421).

The spelling of 10220212120220 in words is "ten trillion, two hundred twenty billion, two hundred twelve million, one hundred twenty thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 9973 19946 39892 49865 99730 199460 51239407 102478814 204957628 256197035 512394070 1024788140 511010606011 1022021212022 2044042424044 2555053030055 5110106060110 10220212120220