222187996 has 6 divisors (see below), whose sum is σ = 388829000. Its totient is φ = 111093996.

The previous prime is 222187993. The next prime is 222188003. The reversal of 222187996 is 699781222.

222187996 is digitally balanced in base 3, 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 (222187991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27773496 + ... + 27773503.

Almost surely, 2^222187996 is an apocalyptic number.

It is an amenable number.

222187996 is a deficient number, since it is larger than the sum of its proper divisors (166641004).

222187996 is a wasteful number, since it uses less digits than its factorization.

222187996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55547003 (or 55547001 counting only the distinct ones).

The product of its digits is 217728, while the sum is 46.

The square root of 222187996 is about 14905.9718234002. The cubic root of 222187996 is about 605.6757660942.

The spelling of 222187996 in words is "two hundred twenty-two million, one hundred eighty-seven thousand, nine hundred ninety-six".