222187010231 has 4 divisors (see below), whose sum is σ = 222192756072. Its totient is φ = 222181264392.

The previous prime is 222187010209. The next prime is 222187010317. The reversal of 222187010231 is 132010781222.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222187010231 is a prime.

It is a super-2 number, since 2×222187010231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222187010194 and 222187010203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222187010531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2814521 + ... + 2892386.

It is an arithmetic number, because the mean of its divisors is an integer number (55548189018).

Almost surely, 2^222187010231 is an apocalyptic number.

222187010231 is a deficient number, since it is larger than the sum of its proper divisors (5745841).

222187010231 is an equidigital number, since it uses as much as digits as its factorization.

222187010231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5745840.

The product of its (nonzero) digits is 2688, while the sum is 29.

Adding to 222187010231 its reverse (132010781222), we get a palindrome (354197791453).

The spelling of 222187010231 in words is "two hundred twenty-two billion, one hundred eighty-seven million, ten thousand, two hundred thirty-one".