20120112210 has 32 divisors (see below), whose sum is σ = 52678112832. Its totient is φ = 4877602880.

The previous prime is 20120112203. The next prime is 20120112211. The reversal of 20120112210 is 1221102102.

It is not an unprimeable number, because it can be changed into a prime (20120112211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30484689 + ... + 30485348.

It is an arithmetic number, because the mean of its divisors is an integer number (1646191026).

Almost surely, 2^20120112210 is an apocalyptic number.

20120112210 is an abundant number, since it is smaller than the sum of its proper divisors (32558000622).

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

20120112210 is a wasteful number, since it uses less digits than its factorization.

20120112210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60970058.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20120112210 its reverse (1221102102), we get a palindrome (21341214312).

The spelling of 20120112210 in words is "twenty billion, one hundred twenty million, one hundred twelve thousand, two hundred ten".