22111210222421 has 8 divisors (see below), whose sum is σ = 22326028807680. Its totient is φ = 21896394457392.

The previous prime is 22111210222219. The next prime is 22111210222429. The reversal of 22111210222421 is 12422201211122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22111210222421 - 2¹⁸ = 22111209960277 is a prime.

It is a super-2 number, since 2×22111210222421² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22111210222429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17265596 + ... + 18501978.

It is an arithmetic number, because the mean of its divisors is an integer number (2790753600960).

Almost surely, 2^{22111210222421} is an apocalyptic number.

It is an amenable number.

22111210222421 is a deficient number, since it is larger than the sum of its proper divisors (214818585259).

22111210222421 is a wasteful number, since it uses less digits than its factorization.

22111210222421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1410115.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 22111210222421 its reverse (12422201211122), we get a palindrome (34533411433543).

The spelling of 22111210222421 in words is "twenty-two trillion, one hundred eleven billion, two hundred ten million, two hundred twenty-two thousand, four hundred twenty-one".