122719442 has 16 divisors (see below), whose sum is σ = 194301600. Its totient is φ = 57970080.

The previous prime is 122719439. The next prime is 122719459. The reversal of 122719442 is 244917221.

It is a happy number.

It is a super-2 number, since 2×122719442² = 30120122889582728, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122719399 and 122719408.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10142 + ... + 18662.

It is an arithmetic number, because the mean of its divisors is an integer number (12143850).

Almost surely, 2^122719442 is an apocalyptic number.

122719442 is a deficient number, since it is larger than the sum of its proper divisors (71582158).

122719442 is a wasteful number, since it uses less digits than its factorization.

122719442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8921.

The product of its digits is 8064, while the sum is 32.

The square root of 122719442 is about 11077.8807540071. The cubic root of 122719442 is about 496.9405740072.

The spelling of 122719442 in words is "one hundred twenty-two million, seven hundred nineteen thousand, four hundred forty-two".