2212431989 has 2 divisors, whose sum is σ = 2212431990. Its totient is φ = 2212431988.

The previous prime is 2212431979. The next prime is 2212432063. The reversal of 2212431989 is 9891342122.

2212431989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1867104100 + 345327889 = 43210^2 + 18583^2 .

It is a cyclic number.

It is not a de Polignac number, because 2212431989 - 2²⁰ = 2211383413 is a prime.

It is a super-2 number, since 2×2212431989² = 9789710611900992242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2212431959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1106215994 + 1106215995.

It is an arithmetic number, because the mean of its divisors is an integer number (1106215995).

Almost surely, 2^2212431989 is an apocalyptic number.

It is an amenable number.

2212431989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2212431989 is an equidigital number, since it uses as much as digits as its factorization.

2212431989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 62208, while the sum is 41.

The square root of 2212431989 is about 47036.4963512377. The cubic root of 2212431989 is about 1303.0366858579.

The spelling of 2212431989 in words is "two billion, two hundred twelve million, four hundred thirty-one thousand, nine hundred eighty-nine".