122001818 has 8 divisors (see below), whose sum is σ = 183130740. Its totient is φ = 60958240.

The previous prime is 122001799. The next prime is 122001851. The reversal of 122001818 is 818100221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 101868649 + 20133169 = 10093^2 + 4487^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 122001793 and 122001802.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17633 + ... + 23556.

Almost surely, 2^122001818 is an apocalyptic number.

122001818 is a deficient number, since it is larger than the sum of its proper divisors (61128922).

122001818 is a wasteful number, since it uses less digits than its factorization.

122001818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42672.

The product of its (nonzero) digits is 256, while the sum is 23.

The square root of 122001818 is about 11045.4433138738. The cubic root of 122001818 is about 495.9700299486.

The spelling of 122001818 in words is "one hundred twenty-two million, one thousand, eight hundred eighteen".