2211122203131 has 4 divisors (see below), whose sum is σ = 2948162937512. Its totient is φ = 1474081468752.

The previous prime is 2211122203127. The next prime is 2211122203151. The reversal of 2211122203131 is 1313022211122.

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

It is not a de Polignac number, because 2211122203131 - 2² = 2211122203127 is a prime.

It is a super-2 number, since 2×2211122203131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2211122203098 and 2211122203107.

It is not an unprimeable number, because it can be changed into a prime (2211122203151) 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, 368520367186 + ... + 368520367191.

It is an arithmetic number, because the mean of its divisors is an integer number (737040734378).

Almost surely, 2^{2211122203131} is an apocalyptic number.

2211122203131 is a deficient number, since it is larger than the sum of its proper divisors (737040734381).

2211122203131 is an equidigital number, since it uses as much as digits as its factorization.

2211122203131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737040734380.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 2211122203131 its reverse (1313022211122), we get a palindrome (3524144414253).

The spelling of 2211122203131 in words is "two trillion, two hundred eleven billion, one hundred twenty-two million, two hundred three thousand, one hundred thirty-one".