197900122 has 24 divisors (see below), whose sum is σ = 345803040. Its totient is φ = 84694680.

The previous prime is 197900117. The next prime is 197900141. The reversal of 197900122 is 221009791.

It is a super-2 number, since 2×197900122² = 78328916575229768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 128497 + ... + 130027.

It is an arithmetic number, because the mean of its divisors is an integer number (14408460).

Almost surely, 2^197900122 is an apocalyptic number.

197900122 is a deficient number, since it is larger than the sum of its proper divisors (147902918).

197900122 is a wasteful number, since it uses less digits than its factorization.

197900122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2866 (or 2859 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 31.

The square root of 197900122 is about 14067.6978216054. The cubic root of 197900122 is about 582.7496490482.

The spelling of 197900122 in words is "one hundred ninety-seven million, nine hundred thousand, one hundred twenty-two".