198002112122 has 8 divisors (see below), whose sum is σ = 314473942836. Its totient is φ = 93177464512.

The previous prime is 198002112107. The next prime is 198002112127. The reversal of 198002112122 is 221211200891.

It can be written as a sum of positive squares in 2 ways, for example, as 193618480441 + 4383631681 = 440021^2 + 66209^2 .

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

It is not an unprimeable number, because it can be changed into a prime (198002112127) 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, 2911795733 + ... + 2911795800.

Almost surely, 2^198002112122 is an apocalyptic number.

198002112122 is a deficient number, since it is larger than the sum of its proper divisors (116471830714).

198002112122 is a wasteful number, since it uses less digits than its factorization.

198002112122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5823591552.

The product of its (nonzero) digits is 1152, while the sum is 29.

The spelling of 198002112122 in words is "one hundred ninety-eight billion, two million, one hundred twelve thousand, one hundred twenty-two".