12000122100021 has 32 divisors (see below), whose sum is σ = 17561247169536. Its totient is φ = 7228426176000.

The previous prime is 12000122099983. The next prime is 12000122100073.

12000122100021 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 12000122100021 - 2²³ = 12000113711413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000122110021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49980741 + ... + 50220261.

It is an arithmetic number, because the mean of its divisors is an integer number (548788974048).

Almost surely, 2^{12000122100021} is an apocalyptic number.

12000122100021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12000122100021 is a deficient number, since it is larger than the sum of its proper divisors (5561125069515).

12000122100021 is a wasteful number, since it uses less digits than its factorization.

12000122100021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248793.

The product of its (nonzero) digits is 16, while the sum is 12.

It can be divided in two parts, 1200012 and 2100021, that added together give a palindrome (3300033).

The spelling of 12000122100021 in words is "twelve trillion, one hundred twenty-two million, one hundred thousand, twenty-one".