222042442150531 has 4 divisors (see below), whose sum is σ = 222487416985000. Its totient is φ = 221597467316064.

The previous prime is 222042442150499. The next prime is 222042442150549. The reversal of 222042442150531 is 135051244240222.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 222042442150531 - 2⁵ = 222042442150499 is a prime.

It is a super-2 number, since 2×222042442150531² (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 (222042442150831) 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 3 ways as a sum of consecutive naturals, for example, 222487416486 + ... + 222487417483.

It is an arithmetic number, because the mean of its divisors is an integer number (55621854246250).

Almost surely, 2^{222042442150531} is an apocalyptic number.

222042442150531 is a deficient number, since it is larger than the sum of its proper divisors (444974834469).

222042442150531 is an equidigital number, since it uses as much as digits as its factorization.

222042442150531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444974834468.

The product of its (nonzero) digits is 153600, while the sum is 37.

Adding to 222042442150531 its reverse (135051244240222), we get a palindrome (357093686390753).

The spelling of 222042442150531 in words is "two hundred twenty-two trillion, forty-two billion, four hundred forty-two million, one hundred fifty thousand, five hundred thirty-one".