21541122114512 has 80 divisors (see below), whose sum is σ = 56037044982912. Its totient is φ = 7747056898560.

The previous prime is 21541122114487. The next prime is 21541122114557.

21541122114512 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 672471563 + ... + 672503594.

Almost surely, 2^{21541122114512} is an apocalyptic number.

21541122114512 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21541122114512 is an abundant number, since it is smaller than the sum of its proper divisors (34495922868400).

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

21541122114512 is a wasteful number, since it uses less digits than its factorization.

21541122114512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344975196 (or 1344975190 counting only the distinct ones).

The product of its digits is 6400, while the sum is 32.

It can be divided in two parts, 2154112 and 2114512, that added together give a palindrome (4268624).

The spelling of 21541122114512 in words is "twenty-one trillion, five hundred forty-one billion, one hundred twenty-two million, one hundred fourteen thousand, five hundred twelve".