222120134012 has 24 divisors (see below), whose sum is σ = 470372049504. Its totient is φ = 89594675712.

The previous prime is 222120134009. The next prime is 222120134017. The reversal of 222120134012 is 210431021222.

It is a super-2 number, since 2×222120134012² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222120134017) 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, 233318993 + ... + 233319944.

It is an arithmetic number, because the mean of its divisors is an integer number (19598835396).

Almost surely, 2^222120134012 is an apocalyptic number.

It is an amenable number.

222120134012 is an abundant number, since it is smaller than the sum of its proper divisors (248251915492).

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

222120134012 is a wasteful number, since it uses less digits than its factorization.

222120134012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466638965 (or 466638963 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 222120134012 its reverse (210431021222), we get a palindrome (432551155234).

The spelling of 222120134012 in words is "two hundred twenty-two billion, one hundred twenty million, one hundred thirty-four thousand, twelve".