21010302092 has 12 divisors (see below), whose sum is σ = 39596338656. Its totient is φ = 9697062480.

The previous prime is 21010302067. The next prime is 21010302097. The reversal of 21010302092 is 29020301012.

It is not an unprimeable number, because it can be changed into a prime (21010302097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202022084 + ... + 202022187.

It is an arithmetic number, because the mean of its divisors is an integer number (3299694888).

Almost surely, 2^21010302092 is an apocalyptic number.

It is an amenable number.

21010302092 is a deficient number, since it is larger than the sum of its proper divisors (18586036564).

21010302092 is a wasteful number, since it uses less digits than its factorization.

21010302092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404044288 (or 404044286 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The spelling of 21010302092 in words is "twenty-one billion, ten million, three hundred two thousand, ninety-two".