22121412344418 has 16 divisors (see below), whose sum is σ = 44474462516736. Its totient is φ = 7335197810160.

The previous prime is 22121412344411. The next prime is 22121412344429. The reversal of 22121412344418 is 81444321412122.

It is a super-2 number, since 2×22121412344418² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22121412344411) 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, 9651574921 + ... + 9651577212.

It is an arithmetic number, because the mean of its divisors is an integer number (2779653907296).

Almost surely, 2^{22121412344418} is an apocalyptic number.

22121412344418 is an abundant number, since it is smaller than the sum of its proper divisors (22353050172318).

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

22121412344418 is a wasteful number, since it uses less digits than its factorization.

22121412344418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19303152329.

The product of its digits is 98304, while the sum is 39.

The spelling of 22121412344418 in words is "twenty-two trillion, one hundred twenty-one billion, four hundred twelve million, three hundred forty-four thousand, four hundred eighteen".