222551661031 has 16 divisors (see below), whose sum is σ = 255202536960. Its totient is φ = 190116131040.

The previous prime is 222551660999. The next prime is 222551661049. The reversal of 222551661031 is 130166155222.

It is a cyclic number.

It is not a de Polignac number, because 222551661031 - 2⁵ = 222551660999 is a prime.

It is a super-2 number, since 2×222551661031² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222551661091) 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, 2987125 + ... + 3060721.

It is an arithmetic number, because the mean of its divisors is an integer number (15950158560).

Almost surely, 2^222551661031 is an apocalyptic number.

222551661031 is a deficient number, since it is larger than the sum of its proper divisors (32650875929).

222551661031 is a wasteful number, since it uses less digits than its factorization.

222551661031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75054.

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 222551661031 in words is "two hundred twenty-two billion, five hundred fifty-one million, six hundred sixty-one thousand, thirty-one".