22212202112012 has 48 divisors (see below), whose sum is σ = 44903796553728. Its totient is φ = 9501643710720.

The previous prime is 22212202112011. The next prime is 22212202112057. The reversal of 22212202112012 is 21021120221222.

It is not an unprimeable number, because it can be changed into a prime (22212202112011) 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, 6499013 + ... + 9309219.

It is an arithmetic number, because the mean of its divisors is an integer number (935495761536).

Almost surely, 2^{22212202112012} is an apocalyptic number.

22212202112012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

22212202112012 is an abundant number, since it is smaller than the sum of its proper divisors (22691594441716).

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

22212202112012 is a wasteful number, since it uses less digits than its factorization.

22212202112012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2820806 (or 2820804 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 22212202112012 its reverse (21021120221222), we get a palindrome (43233322333234).

The spelling of 22212202112012 in words is "twenty-two trillion, two hundred twelve billion, two hundred two million, one hundred twelve thousand, twelve".