21122112103210 has 32 divisors (see below), whose sum is σ = 38047713998400. Its totient is φ = 8442644411520.

The previous prime is 21122112103207. The next prime is 21122112103237. The reversal of 21122112103210 is 1230121122112.

It is a super-2 number, since 2×21122112103210² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75293686 + ... + 75573694.

It is an arithmetic number, because the mean of its divisors is an integer number (1188991062450).

Almost surely, 2^{21122112103210} is an apocalyptic number.

21122112103210 is a deficient number, since it is larger than the sum of its proper divisors (16925601895190).

21122112103210 is a wasteful number, since it uses less digits than its factorization.

21122112103210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285526.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 21122112103210 its reverse (1230121122112), we get a palindrome (22352233225322).

The spelling of 21122112103210 in words is "twenty-one trillion, one hundred twenty-two billion, one hundred twelve million, one hundred three thousand, two hundred ten".