120222631 has 2 divisors, whose sum is σ = 120222632. Its totient is φ = 120222630.

The previous prime is 120222617. The next prime is 120222637. The reversal of 120222631 is 136222021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 120222631 - 2⁷ = 120222503 is a prime.

It is a super-2 number, since 2×120222631² = 28906962009124322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120222599 and 120222608.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120222637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60111315 + 60111316.

It is an arithmetic number, because the mean of its divisors is an integer number (60111316).

Almost surely, 2^120222631 is an apocalyptic number.

120222631 is a deficient number, since it is larger than the sum of its proper divisors (1).

120222631 is an equidigital number, since it uses as much as digits as its factorization.

120222631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 120222631 is about 10964.6081097320. The cubic root of 120222631 is about 493.5472571235.

Adding to 120222631 its reverse (136222021), we get a palindrome (256444652).

The spelling of 120222631 in words is "one hundred twenty million, two hundred twenty-two thousand, six hundred thirty-one".