197187222 has 16 divisors (see below), whose sum is σ = 395843760. Its totient is φ = 65484192.

The previous prime is 197187209. The next prime is 197187223. The reversal of 197187222 is 222781791.

197187222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197187223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59473 + ... + 62700.

It is an arithmetic number, because the mean of its divisors is an integer number (24740235).

Almost surely, 2^197187222 is an apocalyptic number.

197187222 is an abundant number, since it is smaller than the sum of its proper divisors (198656538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

197187222 is a wasteful number, since it uses less digits than its factorization.

197187222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122447.

The product of its digits is 28224, while the sum is 39.

The square root of 197187222 is about 14042.3367713497. The cubic root of 197187222 is about 582.0490564570.

The spelling of 197187222 in words is "one hundred ninety-seven million, one hundred eighty-seven thousand, two hundred twenty-two".