222242431131 has 64 divisors (see below), whose sum is σ = 400657152000. Its totient is φ = 121474007424.

The previous prime is 222242431127. The next prime is 222242431217. The reversal of 222242431131 is 131134242222.

222242431131 is a `hidden beast` number, since 2 + 2 + 224 + 2 + 431 + 1 + 3 + 1 = 666.

It is not a de Polignac number, because 222242431131 - 2² = 222242431127 is a prime.

It is a super-2 number, since 2×222242431131² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 222242431095 and 222242431104.

It is not an unprimeable number, because it can be changed into a prime (222242431031) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 308686 + ... + 734691.

It is an arithmetic number, because the mean of its divisors is an integer number (6260268000).

Almost surely, 2^222242431131 is an apocalyptic number.

222242431131 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

222242431131 is a deficient number, since it is larger than the sum of its proper divisors (178414720869).

222242431131 is a wasteful number, since it uses less digits than its factorization.

222242431131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043430 (or 1043410 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

Adding to 222242431131 its reverse (131134242222), we get a palindrome (353376673353).

The spelling of 222242431131 in words is "two hundred twenty-two billion, two hundred forty-two million, four hundred thirty-one thousand, one hundred thirty-one".