20211112210 has 16 divisors (see below), whose sum is σ = 36399459096. Its totient is φ = 8080121088.

The previous prime is 20211112151. The next prime is 20211112297. The reversal of 20211112210 is 1221111202.

It can be written as a sum of positive squares in 4 ways, for example, as 7492460481 + 12718651729 = 86559^2 + 112777^2 .

It is a super-2 number, since 2×20211112210² (a number of 21 digits) contains 22 as substring.

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, 520809 + ... + 558268.

Almost surely, 2^20211112210 is an apocalyptic number.

20211112210 is a deficient number, since it is larger than the sum of its proper divisors (16188346886).

20211112210 is a wasteful number, since it uses less digits than its factorization.

20211112210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1080957.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20211112210 its reverse (1221111202), we get a palindrome (21432223412).

The spelling of 20211112210 in words is "twenty billion, two hundred eleven million, one hundred twelve thousand, two hundred ten".