20111122112210 has 32 divisors (see below), whose sum is σ = 36251293236480. Its totient is φ = 8033062154112.

The previous prime is 20111122112171. The next prime is 20111122112231. The reversal of 20111122112210 is 1221122111102.

It is a super-2 number, since 2×20111122112210² (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, 21336071 + ... + 22258709.

It is an arithmetic number, because the mean of its divisors is an integer number (1132852913640).

Almost surely, 2^{20111122112210} is an apocalyptic number.

20111122112210 is a deficient number, since it is larger than the sum of its proper divisors (16140171124270).

20111122112210 is a wasteful number, since it uses less digits than its factorization.

20111122112210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925730.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 20111122112210 its reverse (1221122111102), we get a palindrome (21332244223312).

The spelling of 20111122112210 in words is "twenty trillion, one hundred eleven billion, one hundred twenty-two million, one hundred twelve thousand, two hundred ten".