222131212210 has 8 divisors (see below), whose sum is σ = 399836181996. Its totient is φ = 88852484880.

The previous prime is 222131212207. The next prime is 222131212229. The reversal of 222131212210 is 12212131222.

It can be written as a sum of positive squares in 2 ways, for example, as 216724698369 + 5406513841 = 465537^2 + 73529^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11106560601 + ... + 11106560620.

Almost surely, 2^222131212210 is an apocalyptic number.

222131212210 is a deficient number, since it is larger than the sum of its proper divisors (177704969786).

222131212210 is a wasteful number, since it uses less digits than its factorization.

222131212210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22213121228.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 222131212210 its reverse (12212131222), we get a palindrome (234343343432).

The spelling of 222131212210 in words is "two hundred twenty-two billion, one hundred thirty-one million, two hundred twelve thousand, two hundred ten".