2142211231 has 2 divisors, whose sum is σ = 2142211232. Its totient is φ = 2142211230.

The previous prime is 2142211199. The next prime is 2142211241. The reversal of 2142211231 is 1321122412.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2142211231 - 2⁵ = 2142211199 is a prime.

It is a super-2 number, since 2×2142211231² = 9178137916445070722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2142211199 and 2142211208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2142211241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071105615 + 1071105616.

It is an arithmetic number, because the mean of its divisors is an integer number (1071105616).

Almost surely, 2^2142211231 is an apocalyptic number.

2142211231 is a deficient number, since it is larger than the sum of its proper divisors (1).

2142211231 is an equidigital number, since it uses as much as digits as its factorization.

2142211231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 192, while the sum is 19.

The square root of 2142211231 is about 46284.0278173799. The cubic root of 2142211231 is about 1289.1024405587.

Adding to 2142211231 its reverse (1321122412), we get a palindrome (3463333643).

The spelling of 2142211231 in words is "two billion, one hundred forty-two million, two hundred eleven thousand, two hundred thirty-one".