20012211021112 has 64 divisors (see below), whose sum is σ = 38894997960000. Its totient is φ = 9646154833920.

The previous prime is 20012211021059. The next prime is 20012211021151. The reversal of 20012211021112 is 21112011221002.

It is a congruent number.

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, 45290464 + ... + 45730192.

It is an arithmetic number, because the mean of its divisors is an integer number (607734343125).

Almost surely, 2^{20012211021112} is an apocalyptic number.

It is an amenable number.

20012211021112 is a deficient number, since it is larger than the sum of its proper divisors (18882786938888).

20012211021112 is a wasteful number, since it uses less digits than its factorization.

20012211021112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441424 (or 441420 counting only the distinct ones).

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

Adding to 20012211021112 its reverse (21112011221002), we get a palindrome (41124222242114).

The spelling of 20012211021112 in words is "twenty trillion, twelve billion, two hundred eleven million, twenty-one thousand, one hundred twelve".