20120211210112 has 96 divisors (see below), whose sum is σ = 45124968089880. Its totient is φ = 8882500881408.

The previous prime is 20120211210091. The next prime is 20120211210131. The reversal of 20120211210112 is 21101211202102.

It is a super-2 number, since 2×20120211210112² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10548358 + ... + 12308869.

Almost surely, 2^{20120211210112} is an apocalyptic number.

It is an amenable number.

20120211210112 is an abundant number, since it is smaller than the sum of its proper divisors (25004756879768).

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

20120211210112 is a wasteful number, since it uses less digits than its factorization.

20120211210112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22857300 (or 22857265 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 20120211210112 its reverse (21101211202102), we get a palindrome (41221422412214).

The spelling of 20120211210112 in words is "twenty trillion, one hundred twenty billion, two hundred eleven million, two hundred ten thousand, one hundred twelve".