21223231020297 has 12 divisors (see below), whose sum is σ = 32269240148080. Its totient is φ = 13404145907448.

The previous prime is 21223231020293. The next prime is 21223231020311. The reversal of 21223231020297 is 79202013232212.

21223231020297 is a `hidden beast` number, since 2 + 1 + 2 + 2 + 32 + 310 + 20 + 297 = 666.

It is not a de Polignac number, because 21223231020297 - 2² = 21223231020293 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21223231020293) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 62056230883 + ... + 62056231224.

Almost surely, 2^{21223231020297} is an apocalyptic number.

It is an amenable number.

21223231020297 is a deficient number, since it is larger than the sum of its proper divisors (11046009127783).

21223231020297 is a wasteful number, since it uses less digits than its factorization.

21223231020297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124112462132 (or 124112462129 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The spelling of 21223231020297 in words is "twenty-one trillion, two hundred twenty-three billion, two hundred thirty-one million, twenty thousand, two hundred ninety-seven".