2210420012421 has 16 divisors (see below), whose sum is σ = 3121118827200. Its totient is φ = 1386696484608.

The previous prime is 2210420012419. The next prime is 2210420012441. The reversal of 2210420012421 is 1242100240122.

It is not a de Polignac number, because 2210420012421 - 2¹ = 2210420012419 is a prime.

It is a super-2 number, since 2×2210420012421² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2210420012441) 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, 3346006 + ... + 3951783.

It is an arithmetic number, because the mean of its divisors is an integer number (195069926700).

Almost surely, 2^{2210420012421} is an apocalyptic number.

It is an amenable number.

2210420012421 is a deficient number, since it is larger than the sum of its proper divisors (910698814779).

2210420012421 is a wasteful number, since it uses less digits than its factorization.

2210420012421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7303748.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 2210420012421 its reverse (1242100240122), we get a palindrome (3452520252543).

The spelling of 2210420012421 in words is "two trillion, two hundred ten billion, four hundred twenty million, twelve thousand, four hundred twenty-one".