2190202191 has 12 divisors (see below), whose sum is σ = 3349721232. Its totient is φ = 1374244416.

The previous prime is 2190202171. The next prime is 2190202207. The reversal of 2190202191 is 1912020912.

2190202191 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2190202191 - 2⁶ = 2190202127 is a prime.

It is a super-2 number, since 2×2190202191² = 9593971274922400962, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2190202171) 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, 7157371 + ... + 7157676.

It is an arithmetic number, because the mean of its divisors is an integer number (279143436).

Almost surely, 2^2190202191 is an apocalyptic number.

2190202191 is a deficient number, since it is larger than the sum of its proper divisors (1159519041).

2190202191 is a wasteful number, since it uses less digits than its factorization.

2190202191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14315070 (or 14315067 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 2190202191 is about 46799.5960559490. The cubic root of 2190202191 is about 1298.6578240268.

The spelling of 2190202191 in words is "two billion, one hundred ninety million, two hundred two thousand, one hundred ninety-one".