421940922271 has 16 divisors (see below), whose sum is σ = 466223731200. Its totient is φ = 378659476800.

The previous prime is 421940922269. The next prime is 421940922317. The reversal of 421940922271 is 172229049124.

It is not a de Polignac number, because 421940922271 - 2¹ = 421940922269 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 (421940922211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 257866 + ... + 954136.

It is an arithmetic number, because the mean of its divisors is an integer number (29138983200).

Almost surely, 2^421940922271 is an apocalyptic number.

421940922271 is a deficient number, since it is larger than the sum of its proper divisors (44282808929).

421940922271 is a wasteful number, since it uses less digits than its factorization.

421940922271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696990.

The product of its (nonzero) digits is 145152, while the sum is 43.

The spelling of 421940922271 in words is "four hundred twenty-one billion, nine hundred forty million, nine hundred twenty-two thousand, two hundred seventy-one".