198220011901 has 8 divisors (see below), whose sum is σ = 207643097664. Its totient is φ = 188863994880.

The previous prime is 198220011887. The next prime is 198220011919. The reversal of 198220011901 is 109110022891.

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

It is a cyclic number.

It is not a de Polignac number, because 198220011901 - 2¹⁷ = 198219880829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198220011601) 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, 16761135 + ... + 16772956.

It is an arithmetic number, because the mean of its divisors is an integer number (25955387208).

Almost surely, 2^198220011901 is an apocalyptic number.

It is an amenable number.

198220011901 is a deficient number, since it is larger than the sum of its proper divisors (9423085763).

198220011901 is a wasteful number, since it uses less digits than its factorization.

198220011901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33534371.

The product of its (nonzero) digits is 2592, while the sum is 34.

The spelling of 198220011901 in words is "one hundred ninety-eight billion, two hundred twenty million, eleven thousand, nine hundred one".