221959760144131 has 16 divisors (see below), whose sum is σ = 226932293952000. Its totient is φ = 216997748908128.

The previous prime is 221959760144063. The next prime is 221959760144141. The reversal of 221959760144131 is 131441067959122.

It is not a de Polignac number, because 221959760144131 - 2⁹ = 221959760143619 is a prime.

It is a super-2 number, since 2×221959760144131² (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 (221959760144141) 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, 191913220 + ... + 193066318.

It is an arithmetic number, because the mean of its divisors is an integer number (14183268372000).

Almost surely, 2^{221959760144131} is an apocalyptic number.

221959760144131 is a deficient number, since it is larger than the sum of its proper divisors (4972533807869).

221959760144131 is a wasteful number, since it uses less digits than its factorization.

221959760144131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157658.

The product of its (nonzero) digits is 3265920, while the sum is 55.

The spelling of 221959760144131 in words is "two hundred twenty-one trillion, nine hundred fifty-nine billion, seven hundred sixty million, one hundred forty-four thousand, one hundred thirty-one".