221042051432031 has 16 divisors (see below), whose sum is σ = 305071586361344. Its totient is φ = 142249662372384.

The previous prime is 221042051432021. The next prime is 221042051432047. The reversal of 221042051432031 is 130234150240122.

It is a happy number.

It is not a de Polignac number, because 221042051432031 - 2²² = 221042047237727 is a prime.

It is a super-2 number, since 2×221042051432031² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221042051432031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221042051432011) 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, 7840024615 + ... + 7840052808.

It is an arithmetic number, because the mean of its divisors is an integer number (19066974147584).

Almost surely, 2^{221042051432031} is an apocalyptic number.

221042051432031 is a deficient number, since it is larger than the sum of its proper divisors (84029534929313).

221042051432031 is a wasteful number, since it uses less digits than its factorization.

221042051432031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15680077590.

The product of its (nonzero) digits is 11520, while the sum is 30.

The spelling of 221042051432031 in words is "two hundred twenty-one trillion, forty-two billion, fifty-one million, four hundred thirty-two thousand, thirty-one".