22220122201212 has 96 divisors (see below), whose sum is σ = 60717428476992. Its totient is φ = 6260873342976.

The previous prime is 22220122201171. The next prime is 22220122201217. The reversal of 22220122201212 is 21210222102222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22220122201217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 113126583 + ... + 113322830.

It is an arithmetic number, because the mean of its divisors is an integer number (632473213302).

Almost surely, 2^{22220122201212} is an apocalyptic number.

It is an amenable number.

22220122201212 is an abundant number, since it is smaller than the sum of its proper divisors (38497306275780).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22220122201212 is a wasteful number, since it uses less digits than its factorization.

22220122201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226449487 (or 226449485 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 22220122201212 its reverse (21210222102222), we get a palindrome (43430344303434).

The spelling of 22220122201212 in words is "twenty-two trillion, two hundred twenty billion, one hundred twenty-two million, two hundred one thousand, two hundred twelve".