2102220197 has 12 divisors (see below), whose sum is σ = 2667753216. Its totient is φ = 1638093240.

The previous prime is 2102220193. The next prime is 2102220199. The reversal of 2102220197 is 7910222012.

It is not a de Polignac number, because 2102220197 - 2² = 2102220193 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 (2102220191) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1949573 + ... + 1950650.

It is an arithmetic number, because the mean of its divisors is an integer number (222312768).

Almost surely, 2^2102220197 is an apocalyptic number.

It is an amenable number.

2102220197 is a deficient number, since it is larger than the sum of its proper divisors (565533019).

2102220197 is a wasteful number, since it uses less digits than its factorization.

2102220197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3900248 (or 3900241 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 2102220197 is about 45849.9748854893. The cubic root of 2102220197 is about 1281.0302977894.

The spelling of 2102220197 in words is "two billion, one hundred two million, two hundred twenty thousand, one hundred ninety-seven".