22121511512122 has 16 divisors (see below), whose sum is σ = 38328180374592. Its totient is φ = 9463748240320.

The previous prime is 22121511512063. The next prime is 22121511512123.

22121511512122 is nontrivially palindromic in base 10.

It is a super-2 number, since 2×22121511512122² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (22121511512123) 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, 29574212878 + ... + 29574213625.

It is an arithmetic number, because the mean of its divisors is an integer number (2395511273412).

Almost surely, 2^{22121511512122} is an apocalyptic number.

22121511512122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22121511512122 is a deficient number, since it is larger than the sum of its proper divisors (16206668862470).

22121511512122 is a wasteful number, since it uses less digits than its factorization.

22121511512122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59148426533.

The product of its digits is 1600, while the sum is 28.

It can be divided in two parts, 2212151 and 1512122, that added together give a palindrome (3724273).

The spelling of 22121511512122 in words is "twenty-two trillion, one hundred twenty-one billion, five hundred eleven million, five hundred twelve thousand, one hundred twenty-two".