21011200202012 has 12 divisors (see below), whose sum is σ = 36995180724936. Its totient is φ = 10441148566320.

The previous prime is 21011200201931. The next prime is 21011200202063. The reversal of 21011200202012 is 21020200211012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16112882939 + ... + 16112884242.

It is an arithmetic number, because the mean of its divisors is an integer number (3082931727078).

Almost surely, 2^{21011200202012} is an apocalyptic number.

It is an amenable number.

21011200202012 is a deficient number, since it is larger than the sum of its proper divisors (15983980522924).

21011200202012 is a wasteful number, since it uses less digits than its factorization.

21011200202012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32225767348 (or 32225767346 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 21011200202012 its reverse (21020200211012), we get a palindrome (42031400413024).

The spelling of 21011200202012 in words is "twenty-one trillion, eleven billion, two hundred million, two hundred two thousand, twelve".