21035292412 has 6 divisors (see below), whose sum is σ = 36811761728. Its totient is φ = 10517646204.

The previous prime is 21035292409. The next prime is 21035292427. The reversal of 21035292412 is 21429253012.

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, 2629411548 + ... + 2629411555.

Almost surely, 2^21035292412 is an apocalyptic number.

It is an amenable number.

21035292412 is a deficient number, since it is larger than the sum of its proper divisors (15776469316).

21035292412 is a wasteful number, since it uses less digits than its factorization.

21035292412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5258823107 (or 5258823105 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 21035292412 in words is "twenty-one billion, thirty-five million, two hundred ninety-two thousand, four hundred twelve".