21100202033012 has 6 divisors (see below), whose sum is σ = 36925353557778. Its totient is φ = 10550101016504.

The previous prime is 21100202032967. The next prime is 21100202033041. The reversal of 21100202033012 is 21033020200112.

It can be written as a sum of positive squares in only one way, i.e., 16358417058916 + 4741784974096 = 4044554^2 + 2177564^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2637525254123 + ... + 2637525254130.

It is an arithmetic number, because the mean of its divisors is an integer number (6154225592963).

Almost surely, 2^{21100202033012} is an apocalyptic number.

It is an amenable number.

21100202033012 is a deficient number, since it is larger than the sum of its proper divisors (15825151524766).

21100202033012 is a wasteful number, since it uses less digits than its factorization.

21100202033012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5275050508257 (or 5275050508255 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 21100202033012 its reverse (21033020200112), we get a palindrome (42133222233124).

The spelling of 21100202033012 in words is "twenty-one trillion, one hundred billion, two hundred two million, thirty-three thousand, twelve".