502040122 has 4 divisors (see below), whose sum is σ = 753060186. Its totient is φ = 251020060.

The previous prime is 502040111. The next prime is 502040167. The reversal of 502040122 is 221040205.

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

It can be written as a sum of positive squares in only one way, i.e., 498584241 + 3455881 = 22329^2 + 1859^2 .

It is a junction number, because it is equal to n+sod(n) for n = 502040096 and 502040105.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 125510029 + ... + 125510032.

Almost surely, 2^502040122 is an apocalyptic number.

502040122 is a deficient number, since it is larger than the sum of its proper divisors (251020064).

502040122 is a wasteful number, since it uses less digits than its factorization.

502040122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251020063.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 502040122 is about 22406.2518507670. The cubic root of 502040122 is about 794.7785583688.

Adding to 502040122 its reverse (221040205), we get a palindrome (723080327).

The spelling of 502040122 in words is "five hundred two million, forty thousand, one hundred twenty-two".