122121479 has 2 divisors, whose sum is σ = 122121480. Its totient is φ = 122121478.

The previous prime is 122121449. The next prime is 122121499. The reversal of 122121479 is 974121221.

It is a strong prime.

It is an emirp because it is prime and its reverse (974121221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122121479 - 2²⁴ = 105344263 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122121449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61060739 + 61060740.

It is an arithmetic number, because the mean of its divisors is an integer number (61060740).

Almost surely, 2^122121479 is an apocalyptic number.

122121479 is a deficient number, since it is larger than the sum of its proper divisors (1).

122121479 is an equidigital number, since it uses as much as digits as its factorization.

122121479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016, while the sum is 29.

The square root of 122121479 is about 11050.8587449121. The cubic root of 122121479 is about 496.1321282902.

The spelling of 122121479 in words is "one hundred twenty-two million, one hundred twenty-one thousand, four hundred seventy-nine".