222220011212 has 24 divisors (see below), whose sum is σ = 395502273600. Its totient is φ = 109219609296.

The previous prime is 222220011199. The next prime is 222220011269. The reversal of 222220011212 is 212110022222.

It is a happy number.

It is a super-2 number, since 2×222220011212² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6364739 + ... + 6399557.

It is an arithmetic number, because the mean of its divisors is an integer number (16479261400).

Almost surely, 2^222220011212 is an apocalyptic number.

It is an amenable number.

222220011212 is a deficient number, since it is larger than the sum of its proper divisors (173282262388).

222220011212 is a wasteful number, since it uses less digits than its factorization.

222220011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61925 (or 61923 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 222220011212 its reverse (212110022222), we get a palindrome (434330033434).

The spelling of 222220011212 in words is "two hundred twenty-two billion, two hundred twenty million, eleven thousand, two hundred twelve".