9202431402221 has 8 divisors (see below), whose sum is σ = 9328644509880. Its totient is φ = 9077073977088.

The previous prime is 9202431402193. The next prime is 9202431402259. The reversal of 9202431402221 is 1222041342029.

It can be written as a sum of positive squares in 4 ways, for example, as 2181865768996 + 7020565633225 = 1477114^2 + 2649635^2 .

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 9202431402221 - 2¹⁴ = 9202431385837 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 (9202431402121) 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, 213898976 + ... + 213941993.

It is an arithmetic number, because the mean of its divisors is an integer number (1166080563735).

Almost surely, 2^{9202431402221} is an apocalyptic number.

It is an amenable number.

9202431402221 is a deficient number, since it is larger than the sum of its proper divisors (126213107659).

9202431402221 is a wasteful number, since it uses less digits than its factorization.

9202431402221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427841263.

The product of its (nonzero) digits is 13824, while the sum is 32.

The spelling of 9202431402221 in words is "nine trillion, two hundred two billion, four hundred thirty-one million, four hundred two thousand, two hundred twenty-one".