21021212311298 has 16 divisors (see below), whose sum is σ = 31567282701984. Its totient is φ = 10498785259200.

The previous prime is 21021212311219. The next prime is 21021212311331. The reversal of 21021212311298 is 89211321212012.

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, 105930986 + ... + 106129242.

It is an arithmetic number, because the mean of its divisors is an integer number (1972955168874).

Almost surely, 2^{21021212311298} is an apocalyptic number.

21021212311298 is a deficient number, since it is larger than the sum of its proper divisors (10546070390686).

21021212311298 is a wasteful number, since it uses less digits than its factorization.

21021212311298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257617.

The product of its (nonzero) digits is 6912, while the sum is 35.

The spelling of 21021212311298 in words is "twenty-one trillion, twenty-one billion, two hundred twelve million, three hundred eleven thousand, two hundred ninety-eight".