222121430311 has 4 divisors (see below), whose sum is σ = 242314287624. Its totient is φ = 201928573000.

The previous prime is 222121430309. The next prime is 222121430329. The reversal of 222121430311 is 113034121222.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 222121430311 - 2¹ = 222121430309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222121430351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10096428640 + ... + 10096428661.

It is an arithmetic number, because the mean of its divisors is an integer number (60578571906).

Almost surely, 2^222121430311 is an apocalyptic number.

222121430311 is a deficient number, since it is larger than the sum of its proper divisors (20192857313).

222121430311 is a wasteful number, since it uses less digits than its factorization.

222121430311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20192857312.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 222121430311 its reverse (113034121222), we get a palindrome (335155551533).

The spelling of 222121430311 in words is "two hundred twenty-two billion, one hundred twenty-one million, four hundred thirty thousand, three hundred eleven".