30222131 has 2 divisors, whose sum is σ = 30222132. Its totient is φ = 30222130.

The previous prime is 30222109. The next prime is 30222133. The reversal of 30222131 is 13122203.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30222131 is a prime.

It is a super-2 number, since 2×30222131² = 1826754404362322, which contains 22 as substring.

Together with 30222133, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30222133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15111065 + 15111066.

It is an arithmetic number, because the mean of its divisors is an integer number (15111066).

Almost surely, 2^30222131 is an apocalyptic number.

30222131 is a deficient number, since it is larger than the sum of its proper divisors (1).

30222131 is an equidigital number, since it uses as much as digits as its factorization.

30222131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 30222131 is about 5497.4658707444. The cubic root of 30222131 is about 311.4882684928.

Adding to 30222131 its product of nonzero digits (72), we get a palindrome (30222203).

Adding to 30222131 its reverse (13122203), we get a palindrome (43344334).

The spelling of 30222131 in words is "thirty million, two hundred twenty-two thousand, one hundred thirty-one".