122240072 has 16 divisors (see below), whose sum is σ = 241263600. Its totient is φ = 57903120.

The previous prime is 122240039. The next prime is 122240077. The reversal of 122240072 is 270042221.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (122240077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 401954 + ... + 402257.

It is an arithmetic number, because the mean of its divisors is an integer number (15078975).

Almost surely, 2^122240072 is an apocalyptic number.

It is an amenable number.

122240072 is a deficient number, since it is larger than the sum of its proper divisors (119023528).

122240072 is a wasteful number, since it uses less digits than its factorization.

122240072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 804236 (or 804232 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 122240072 is about 11056.2232249534. The cubic root of 122240072 is about 496.2926754283.

Adding to 122240072 its reverse (270042221), we get a palindrome (392282293).

The spelling of 122240072 in words is "one hundred twenty-two million, two hundred forty thousand, seventy-two".