220022111212 has 24 divisors (see below), whose sum is σ = 394053875600. Its totient is φ = 107436079296.

The previous prime is 220022111209. The next prime is 220022111213. The reversal of 220022111212 is 212111220022.

It is a happy number.

It is a super-2 number, since 2×220022111212² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (220022111213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1058614 + ... + 1249282.

Almost surely, 2^220022111212 is an apocalyptic number.

It is an amenable number.

220022111212 is a deficient number, since it is larger than the sum of its proper divisors (174031764388).

220022111212 is a wasteful number, since it uses less digits than its factorization.

220022111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197425 (or 197423 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 220022111212 its reverse (212111220022), we get a palindrome (432133331234).

The spelling of 220022111212 in words is "two hundred twenty billion, twenty-two million, one hundred eleven thousand, two hundred twelve".