202101012198 has 16 divisors (see below), whose sum is σ = 449113360560. Its totient is φ = 67367004048.

The previous prime is 202101012181. The next prime is 202101012199. The reversal of 202101012198 is 891210101202.

It is a super-2 number, since 2×202101012198² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202101012199) 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, 1871305615 + ... + 1871305722.

It is an arithmetic number, because the mean of its divisors is an integer number (28069585035).

Almost surely, 2^202101012198 is an apocalyptic number.

202101012198 is an abundant number, since it is smaller than the sum of its proper divisors (247012348362).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202101012198 is a wasteful number, since it uses less digits than its factorization.

202101012198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3742611348 (or 3742611342 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 27.

The spelling of 202101012198 in words is "two hundred two billion, one hundred one million, twelve thousand, one hundred ninety-eight".