9400922491021 has 8 divisors (see below), whose sum is σ = 9581351887224. Its totient is φ = 9220606187520.

The previous prime is 9400922491019. The next prime is 9400922491027. The reversal of 9400922491021 is 1201942290049.

It can be written as a sum of positive squares in 4 ways, for example, as 7716650628996 + 1684271862025 = 2777886^2 + 1297795^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9400922491021 - 2¹ = 9400922491019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9400922491027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28105320 + ... + 28437841.

It is an arithmetic number, because the mean of its divisors is an integer number (1197668985903).

Almost surely, 2^{9400922491021} is an apocalyptic number.

It is an amenable number.

9400922491021 is a deficient number, since it is larger than the sum of its proper divisors (180429396203).

9400922491021 is a wasteful number, since it uses less digits than its factorization.

9400922491021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56546351.

The product of its (nonzero) digits is 93312, while the sum is 43.

The spelling of 9400922491021 in words is "nine trillion, four hundred billion, nine hundred twenty-two million, four hundred ninety-one thousand, twenty-one".