12412244202021 has 12 divisors (see below), whose sum is σ = 18592826706272. Its totient is φ = 8274829467852.

The previous prime is 12412244201969. The next prime is 12412244202031. The reversal of 12412244202021 is 12020244221421.

12412244202021 is a `hidden beast` number, since 1 + 2 + 4 + 12 + 2 + 442 + 0 + 202 + 1 = 666.

It is not a de Polignac number, because 12412244202021 - 2⁹ = 12412244201509 is a prime.

It is a super-2 number, since 2×12412244202021² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12412244202031) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25539596881 + ... + 25539597366.

Almost surely, 2^{12412244202021} is an apocalyptic number.

It is an amenable number.

12412244202021 is a deficient number, since it is larger than the sum of its proper divisors (6180582504251).

12412244202021 is an frugal number, since it uses more digits than its factorization.

12412244202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51079194262 (or 51079194250 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 27.

Adding to 12412244202021 its reverse (12020244221421), we get a palindrome (24432488423442).

The spelling of 12412244202021 in words is "twelve trillion, four hundred twelve billion, two hundred forty-four million, two hundred two thousand, twenty-one".