2211023113131 has 16 divisors (see below), whose sum is σ = 3370644923904. Its totient is φ = 1262891711424.

The previous prime is 2211023113087. The next prime is 2211023113133. The reversal of 2211023113131 is 1313113201122.

It is not a de Polignac number, because 2211023113131 - 2⁶ = 2211023113067 is a prime.

It is a super-2 number, since 2×2211023113131² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 2211023113098 and 2211023113107.

It is not an unprimeable number, because it can be changed into a prime (2211023113133) 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, 22870095 + ... + 22966568.

It is an arithmetic number, because the mean of its divisors is an integer number (210665307744).

Almost surely, 2^{2211023113131} is an apocalyptic number.

2211023113131 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2211023113131 is a deficient number, since it is larger than the sum of its proper divisors (1159621810773).

2211023113131 is a wasteful number, since it uses less digits than its factorization.

2211023113131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45838970.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 2211023113131 its reverse (1313113201122), we get a palindrome (3524136314253).

The spelling of 2211023113131 in words is "two trillion, two hundred eleven billion, twenty-three million, one hundred thirteen thousand, one hundred thirty-one".