210001198 has 16 divisors (see below), whose sum is σ = 344549376. Its totient is φ = 95202040.

The previous prime is 210001193. The next prime is 210001199. The reversal of 210001198 is 891100012.

It is a super-2 number, since 2×210001198² = 88201006322870408, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210001193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4036 + ... + 20887.

It is an arithmetic number, because the mean of its divisors is an integer number (21534336).

Almost surely, 2^210001198 is an apocalyptic number.

210001198 is a deficient number, since it is larger than the sum of its proper divisors (134548178).

210001198 is a wasteful number, since it uses less digits than its factorization.

210001198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25319.

The product of its (nonzero) digits is 144, while the sum is 22.

The square root of 210001198 is about 14491.4180810575. The cubic root of 210001198 is about 594.3933255628.

The spelling of 210001198 in words is "two hundred ten million, one thousand, one hundred ninety-eight".