21100202211112 has 16 divisors (see below), whose sum is σ = 39568082847840. Its totient is φ = 10548713451696.

The previous prime is 21100202211107. The next prime is 21100202211157. The reversal of 21100202211112 is 21111220200112.

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, 173392108 + ... + 173513755.

It is an arithmetic number, because the mean of its divisors is an integer number (2473005177990).

Almost surely, 2^{21100202211112} is an apocalyptic number.

It is an amenable number.

21100202211112 is a deficient number, since it is larger than the sum of its proper divisors (18467880636728).

21100202211112 is a wasteful number, since it uses less digits than its factorization.

21100202211112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346913472 (or 346913468 counting only the distinct ones).

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

Adding to 21100202211112 its reverse (21111220200112), we get a palindrome (42211422411224).

The spelling of 21100202211112 in words is "twenty-one trillion, one hundred billion, two hundred two million, two hundred eleven thousand, one hundred twelve".