21264846212 has 24 divisors (see below), whose sum is σ = 37312611840. Its totient is φ = 10604138400.

The previous prime is 21264846209. The next prime is 21264846221.

21264846212 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2687462 + ... + 2695362.

It is an arithmetic number, because the mean of its divisors is an integer number (1554692160).

Almost surely, 2^21264846212 is an apocalyptic number.

It is an amenable number.

21264846212 is a deficient number, since it is larger than the sum of its proper divisors (16047765628).

21264846212 is a wasteful number, since it uses less digits than its factorization.

21264846212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9611 (or 9609 counting only the distinct ones).

The product of its digits is 73728, while the sum is 38.

The spelling of 21264846212 in words is "twenty-one billion, two hundred sixty-four million, eight hundred forty-six thousand, two hundred twelve".