2212431311 has 4 divisors (see below), whose sum is σ = 2254175352. Its totient is φ = 2170687272.

The previous prime is 2212431271. The next prime is 2212431337. The reversal of 2212431311 is 1131342122.

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 2212431311 - 2¹⁰ = 2212430287 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 (2212431511) 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, 20871941 + ... + 20872046.

It is an arithmetic number, because the mean of its divisors is an integer number (563543838).

Almost surely, 2^2212431311 is an apocalyptic number.

2212431311 is a deficient number, since it is larger than the sum of its proper divisors (41744041).

2212431311 is an equidigital number, since it uses as much as digits as its factorization.

2212431311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41744040.

The product of its digits is 288, while the sum is 20.

The square root of 2212431311 is about 47036.4891440677. The cubic root of 2212431311 is about 1303.0365527526.

Adding to 2212431311 its reverse (1131342122), we get a palindrome (3343773433).

It can be divided in two parts, 22124 and 31311, that added together give a palindrome (53435).

The spelling of 2212431311 in words is "two billion, two hundred twelve million, four hundred thirty-one thousand, three hundred eleven".