221422052623651 has 8 divisors (see below), whose sum is σ = 249880686346800. Its totient is φ = 194351644935840.

The previous prime is 221422052623649. The next prime is 221422052623661. The reversal of 221422052623651 is 156326250224122.

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 221422052623651 - 2¹ = 221422052623649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221422052623598 and 221422052623607.

It is not an unprimeable number, because it can be changed into a prime (221422052623621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 347056508496 + ... + 347056509133.

It is an arithmetic number, because the mean of its divisors is an integer number (31235085793350).

Almost surely, 2^{221422052623651} is an apocalyptic number.

221422052623651 is a deficient number, since it is larger than the sum of its proper divisors (28458633723149).

221422052623651 is a wasteful number, since it uses less digits than its factorization.

221422052623651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694113017669.

The product of its (nonzero) digits is 691200, while the sum is 43.

The spelling of 221422052623651 in words is "two hundred twenty-one trillion, four hundred twenty-two billion, fifty-two million, six hundred twenty-three thousand, six hundred fifty-one".