22222012210212 has 48 divisors (see below), whose sum is σ = 54901783867392. Its totient is φ = 6971568253440.

The previous prime is 22222012210207. The next prime is 22222012210217. The reversal of 22222012210212 is 21201221022222.

It is an interprime number because it is at equal distance from previous prime (22222012210207) and next prime (22222012210217).

It is a super-2 number, since 2×22222012210212² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22222012210217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53007262 + ... + 53424842.

It is an arithmetic number, because the mean of its divisors is an integer number (1143787163904).

Almost surely, 2^{22222012210212} is an apocalyptic number.

It is an amenable number.

22222012210212 is an abundant number, since it is smaller than the sum of its proper divisors (32679771657180).

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

22222012210212 is a wasteful number, since it uses less digits than its factorization.

22222012210212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 678468 (or 678466 counting only the distinct ones).

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

Adding to 22222012210212 its reverse (21201221022222), we get a palindrome (43423233232434).

The spelling of 22222012210212 in words is "twenty-two trillion, two hundred twenty-two billion, twelve million, two hundred ten thousand, two hundred twelve".