21014185112 has 32 divisors (see below), whose sum is σ = 41802415200. Its totient is φ = 9869336064.

The previous prime is 21014185069. The next prime is 21014185123. The reversal of 21014185112 is 21158141012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85187 + ... + 222002.

It is an arithmetic number, because the mean of its divisors is an integer number (1306325475).

Almost surely, 2^21014185112 is an apocalyptic number.

It is an amenable number.

21014185112 is a deficient number, since it is larger than the sum of its proper divisors (20788230088).

21014185112 is a wasteful number, since it uses less digits than its factorization.

21014185112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307715 (or 307711 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 26.

The spelling of 21014185112 in words is "twenty-one billion, fourteen million, one hundred eighty-five thousand, one hundred twelve".