2211122232031 has 4 divisors (see below), whose sum is σ = 2258167385952. Its totient is φ = 2164077078112.

The previous prime is 2211122231987. The next prime is 2211122232097. The reversal of 2211122232031 is 1302322211122.

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 2211122232031 - 2¹⁷ = 2211122100959 is a prime.

It is a super-2 number, since 2×2211122232031² (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 = 2211122231993 and 2211122232011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211122233031) 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, 23522576890 + ... + 23522576983.

It is an arithmetic number, because the mean of its divisors is an integer number (564541846488).

Almost surely, 2^{2211122232031} is an apocalyptic number.

2211122232031 is a deficient number, since it is larger than the sum of its proper divisors (47045153921).

2211122232031 is an equidigital number, since it uses as much as digits as its factorization.

2211122232031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47045153920.

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

Adding to 2211122232031 its reverse (1302322211122), we get a palindrome (3513444443153).

The spelling of 2211122232031 in words is "two trillion, two hundred eleven billion, one hundred twenty-two million, two hundred thirty-two thousand, thirty-one".