222197240 has 16 divisors (see below), whose sum is σ = 499943880. Its totient is φ = 88878880.

The previous prime is 222197203. The next prime is 222197249. The reversal of 222197240 is 42791222.

222197240 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×222197240² = 98743226927235200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222197249) 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, 2777426 + ... + 2777505.

Almost surely, 2^222197240 is an apocalyptic number.

222197240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222197240 is an abundant number, since it is smaller than the sum of its proper divisors (277746640).

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

222197240 is a wasteful number, since it uses less digits than its factorization.

222197240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5554942 (or 5554938 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 222197240 is about 14906.2818972405. The cubic root of 222197240 is about 605.6841655715.

The spelling of 222197240 in words is "two hundred twenty-two million, one hundred ninety-seven thousand, two hundred forty".