122940211519 has 4 divisors (see below), whose sum is σ = 123450337120. Its totient is φ = 122430085920.

The previous prime is 122940211469. The next prime is 122940211573. The reversal of 122940211519 is 915112049221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 122940211519 - 2⁷ = 122940211391 is a prime.

It is a super-2 number, since 2×122940211519² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122940211619) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 255062439 + ... + 255062920.

It is an arithmetic number, because the mean of its divisors is an integer number (30862584280).

Almost surely, 2^122940211519 is an apocalyptic number.

122940211519 is a deficient number, since it is larger than the sum of its proper divisors (510125601).

122940211519 is an equidigital number, since it uses as much as digits as its factorization.

122940211519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510125600.

The product of its (nonzero) digits is 12960, while the sum is 37.

The spelling of 122940211519 in words is "one hundred twenty-two billion, nine hundred forty million, two hundred eleven thousand, five hundred nineteen".