122001898 has 16 divisors (see below), whose sum is σ = 189595080. Its totient is φ = 58809856.

The previous prime is 122001871. The next prime is 122001899. The reversal of 122001898 is 898100221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 105945849 + 16056049 = 10293^2 + 4007^2 .

It is not an unprimeable number, because it can be changed into a prime (122001899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55590 + ... + 57742.

Almost surely, 2^122001898 is an apocalyptic number.

122001898 is a deficient number, since it is larger than the sum of its proper divisors (67593182).

122001898 is a wasteful number, since it uses less digits than its factorization.

122001898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3161.

The product of its (nonzero) digits is 2304, while the sum is 31.

The square root of 122001898 is about 11045.4469352761. The cubic root of 122001898 is about 495.9701383557.

The spelling of 122001898 in words is "one hundred twenty-two million, one thousand, eight hundred ninety-eight".