221655674603131 has 8 divisors (see below), whose sum is σ = 225819344577024. Its totient is φ = 217517162756520.

The previous prime is 221655674603101. The next prime is 221655674603147. The reversal of 221655674603131 is 131306476556122.

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 221655674603131 - 2²¹ = 221655672505979 is a prime.

It is a super-2 number, since 2×221655674603131² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221655674603101) 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, 6289514035 + ... + 6289549276.

It is an arithmetic number, because the mean of its divisors is an integer number (28227418072128).

Almost surely, 2^{221655674603131} is an apocalyptic number.

221655674603131 is a deficient number, since it is larger than the sum of its proper divisors (4163669973893).

221655674603131 is a wasteful number, since it uses less digits than its factorization.

221655674603131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12579063641.

The product of its (nonzero) digits is 5443200, while the sum is 52.

The spelling of 221655674603131 in words is "two hundred twenty-one trillion, six hundred fifty-five billion, six hundred seventy-four million, six hundred three thousand, one hundred thirty-one".