2100211020197 has 4 divisors (see below), whose sum is σ = 2167959762816. Its totient is φ = 2032462277580.

The previous prime is 2100211020181. The next prime is 2100211020209. The reversal of 2100211020197 is 7910201120012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2100211020197 - 2⁴ = 2100211020181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100211020137) 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, 33874371263 + ... + 33874371324.

It is an arithmetic number, because the mean of its divisors is an integer number (541989940704).

Almost surely, 2^{2100211020197} is an apocalyptic number.

It is an amenable number.

2100211020197 is a deficient number, since it is larger than the sum of its proper divisors (67748742619).

2100211020197 is an equidigital number, since it uses as much as digits as its factorization.

2100211020197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67748742618.

The product of its (nonzero) digits is 504, while the sum is 26.

The spelling of 2100211020197 in words is "two trillion, one hundred billion, two hundred eleven million, twenty thousand, one hundred ninety-seven".