122017642198 has 8 divisors (see below), whose sum is σ = 187282892808. Its totient is φ = 59590011264.

The previous prime is 122017642183. The next prime is 122017642199. The reversal of 122017642198 is 891246710221.

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

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122017642199) 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, 709404811 + ... + 709404982.

It is an arithmetic number, because the mean of its divisors is an integer number (23410361601).

Almost surely, 2^122017642198 is an apocalyptic number.

122017642198 is a deficient number, since it is larger than the sum of its proper divisors (65265250610).

122017642198 is a wasteful number, since it uses less digits than its factorization.

122017642198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1418809838.

The product of its (nonzero) digits is 96768, while the sum is 43.

The spelling of 122017642198 in words is "one hundred twenty-two billion, seventeen million, six hundred forty-two thousand, one hundred ninety-eight".