2122412420421 has 16 divisors (see below), whose sum is σ = 3147114665920. Its totient is φ = 1413681627600.

The previous prime is 2122412420417. The next prime is 2122412420437. The reversal of 2122412420421 is 1240242142212.

2122412420421 is a `hidden beast` number, since 2 + 1 + 22 + 412 + 4 + 204 + 21 = 666.

It is not a de Polignac number, because 2122412420421 - 2² = 2122412420417 is a prime.

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 (2122412420411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34968730 + ... + 35029371.

It is an arithmetic number, because the mean of its divisors is an integer number (196694666620).

Almost surely, 2^{2122412420421} is an apocalyptic number.

It is an amenable number.

2122412420421 is a deficient number, since it is larger than the sum of its proper divisors (1024702245499).

2122412420421 is a wasteful number, since it uses less digits than its factorization.

2122412420421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69999233 (or 69999227 counting only the distinct ones).

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

Adding to 2122412420421 its reverse (1240242142212), we get a palindrome (3362654562633).

The spelling of 2122412420421 in words is "two trillion, one hundred twenty-two billion, four hundred twelve million, four hundred twenty thousand, four hundred twenty-one".