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10213222122 = 23463044581
BaseRepresentation
bin10011000001100000…
…10110011011101010
3222100202222102220000
421200300112123222
5131404041101442
64405240443430
7511043645535
oct114060263352
928322872800
1010213222122
114371108a44
121b90479576
13c69c23acc
146cc5c7a1c
153eb979d4c
hex260c166ea

10213222122 has 20 divisors (see below), whose sum is σ = 22885183266. Its totient is φ = 3404407320.

The previous prime is 10213222109. The next prime is 10213222157. The reversal of 10213222122 is 22122231201.

It can be written as a sum of positive squares in only one way, i.e., 9292767201 + 920454921 = 96399^2 + 30339^2 .

It is a super-2 number, since 2×102132221222 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 10213222095 and 10213222104.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 31522129 + ... + 31522452.

Almost surely, 210213222122 is an apocalyptic number.

10213222122 is an abundant number, since it is smaller than the sum of its proper divisors (12671961144).

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

10213222122 is an equidigital number, since it uses as much as digits as its factorization.

10213222122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63044595 (or 63044586 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 10213222122 its reverse (22122231201), we get a palindrome (32335453323).

The spelling of 10213222122 in words is "ten billion, two hundred thirteen million, two hundred twenty-two thousand, one hundred twenty-two".

Divisors: 1 2 3 6 9 18 27 54 81 162 63044581 126089162 189133743 378267486 567401229 1134802458 1702203687 3404407374 5106611061 10213222122