21211012201112 has 32 divisors (see below), whose sum is σ = 39975945934320. Its totient is φ = 10550769156480.

The previous prime is 21211012201109. The next prime is 21211012201177. The reversal of 21211012201112 is 21110221011212.

It is a super-2 number, since 2×21211012201112² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 18060623 + ... + 19199169.

Almost surely, 2^{21211012201112} is an apocalyptic number.

It is an amenable number.

21211012201112 is a deficient number, since it is larger than the sum of its proper divisors (18764933733208).

21211012201112 is a wasteful number, since it uses less digits than its factorization.

21211012201112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150571 (or 1150567 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 21211012201112 its reverse (21110221011212), we get a palindrome (42321233212324).

The spelling of 21211012201112 in words is "twenty-one trillion, two hundred eleven billion, twelve million, two hundred one thousand, one hundred twelve".