122131019 has 2 divisors, whose sum is σ = 122131020. Its totient is φ = 122131018.

The previous prime is 122130997. The next prime is 122131021. The reversal of 122131019 is 910131221.

It is a strong prime.

It is an emirp because it is prime and its reverse (910131221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122131019 - 2¹⁶ = 122065483 is a prime.

It is a super-2 number, since 2×122131019² = 29831971603956722, which contains 22 as substring.

Together with 122131021, 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 (122131039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61065509 + 61065510.

It is an arithmetic number, because the mean of its divisors is an integer number (61065510).

Almost surely, 2^122131019 is an apocalyptic number.

122131019 is a deficient number, since it is larger than the sum of its proper divisors (1).

122131019 is an equidigital number, since it uses as much as digits as its factorization.

122131019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 122131019 is about 11051.2903771460. The cubic root of 122131019 is about 496.1450470585.

The spelling of 122131019 in words is "one hundred twenty-two million, one hundred thirty-one thousand, nineteen".