20101010198 has 8 divisors (see below), whose sum is σ = 30418343208. Its totient is φ = 9961562464.

The previous prime is 20101010197. The next prime is 20101010201. The reversal of 20101010198 is 89101010102.

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

It is a super-2 number, since 2×20101010198² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101010191) 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, 44471036 + ... + 44471487.

It is an arithmetic number, because the mean of its divisors is an integer number (3802292901).

Almost surely, 2^20101010198 is an apocalyptic number.

20101010198 is a deficient number, since it is larger than the sum of its proper divisors (10317333010).

20101010198 is a wasteful number, since it uses less digits than its factorization.

20101010198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88942638.

The product of its (nonzero) digits is 144, while the sum is 23.

The spelling of 20101010198 in words is "twenty billion, one hundred one million, ten thousand, one hundred ninety-eight".