22122021202212 has 48 divisors (see below), whose sum is σ = 54659953897920. Its totient is φ = 6939537364992.

The previous prime is 22122021202091. The next prime is 22122021202219. The reversal of 22122021202212 is 21220212022122.

It is a super-2 number, since 2×22122021202212² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22122021202219) 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, 3488373 + ... + 7510844.

It is an arithmetic number, because the mean of its divisors is an integer number (1138749039540).

Almost surely, 2^{22122021202212} is an apocalyptic number.

It is an amenable number.

22122021202212 is an abundant number, since it is smaller than the sum of its proper divisors (32537932695708).

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

22122021202212 is a wasteful number, since it uses less digits than its factorization.

22122021202212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11009100 (or 11009098 counting only the distinct ones).

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

Adding to 22122021202212 its reverse (21220212022122), we get a palindrome (43342233224334).

It can be divided in two parts, 2 and 2122021202212, that multiplied together give a palindrome (4244042404424).

The spelling of 22122021202212 in words is "twenty-two trillion, one hundred twenty-two billion, twenty-one million, two hundred two thousand, two hundred twelve".