2211322220131 has 4 divisors (see below), whose sum is σ = 2230891443432. Its totient is φ = 2191752996832.

The previous prime is 2211322220099. The next prime is 2211322220153. The reversal of 2211322220131 is 1310222231122.

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

It is a cyclic number.

It is not a de Polignac number, because 2211322220131 - 2⁵ = 2211322220099 is a prime.

It is a super-2 number, since 2×2211322220131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2211322220431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9784611481 + ... + 9784611706.

It is an arithmetic number, because the mean of its divisors is an integer number (557722860858).

Almost surely, 2^{2211322220131} is an apocalyptic number.

2211322220131 is a deficient number, since it is larger than the sum of its proper divisors (19569223301).

2211322220131 is a wasteful number, since it uses less digits than its factorization.

2211322220131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19569223300.

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

Adding to 2211322220131 its reverse (1310222231122), we get a palindrome (3521544451253).

The spelling of 2211322220131 in words is "two trillion, two hundred eleven billion, three hundred twenty-two million, two hundred twenty thousand, one hundred thirty-one".