20120211112012 has 24 divisors (see below), whose sum is σ = 38412319841280. Its totient is φ = 9145310572560.

The previous prime is 20120211111977. The next prime is 20120211112033. The reversal of 20120211112012 is 21021111202102.

It is a super-2 number, since 2×20120211112012² (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 7 ways as a sum of consecutive naturals, for example, 4296688 + ... + 7661719.

It is an arithmetic number, because the mean of its divisors is an integer number (1600513326720).

Almost surely, 2^{20120211112012} is an apocalyptic number.

20120211112012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20120211112012 is a deficient number, since it is larger than the sum of its proper divisors (18292108729268).

20120211112012 is a wasteful number, since it uses less digits than its factorization.

20120211112012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11996661 (or 11996659 counting only the distinct ones).

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

Adding to 20120211112012 its reverse (21021111202102), we get a palindrome (41141322314114).

The spelling of 20120211112012 in words is "twenty trillion, one hundred twenty billion, two hundred eleven million, one hundred twelve thousand, twelve".