20010122011112 has 32 divisors (see below), whose sum is σ = 38141384198400. Its totient is φ = 9840398280000.

The previous prime is 20010122011069. The next prime is 20010122011127. The reversal of 20010122011112 is 21111022101002.

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, 81881312 + ... + 82125327.

It is an arithmetic number, because the mean of its divisors is an integer number (1191918256200).

Almost surely, 2^{20010122011112} is an apocalyptic number.

It is an amenable number.

20010122011112 is a deficient number, since it is larger than the sum of its proper divisors (18131262187288).

20010122011112 is a wasteful number, since it uses less digits than its factorization.

20010122011112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164006897 (or 164006893 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20010122011112 its reverse (21111022101002), we get a palindrome (41121144112114).

The spelling of 20010122011112 in words is "twenty trillion, ten billion, one hundred twenty-two million, eleven thousand, one hundred twelve".