222102111212 has 6 divisors (see below), whose sum is σ = 388678694628. Its totient is φ = 111051055604.

The previous prime is 222102111199. The next prime is 222102111221. The reversal of 222102111212 is 212111201222.

It is a super-2 number, since 2×222102111212² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27762763898 + ... + 27762763905.

It is an arithmetic number, because the mean of its divisors is an integer number (64779782438).

Almost surely, 2^222102111212 is an apocalyptic number.

It is an amenable number.

222102111212 is a deficient number, since it is larger than the sum of its proper divisors (166576583416).

222102111212 is a wasteful number, since it uses less digits than its factorization.

222102111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55525527807 (or 55525527805 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 222102111212 its reverse (212111201222), we get a palindrome (434213312434).

The spelling of 222102111212 in words is "two hundred twenty-two billion, one hundred two million, one hundred eleven thousand, two hundred twelve".