222492492136 has 8 divisors (see below), whose sum is σ = 417173422770. Its totient is φ = 111246246064.

The previous prime is 222492492121. The next prime is 222492492137. The reversal of 222492492136 is 631294294222.

It can be written as a sum of positive squares in only one way, i.e., 211020796900 + 11471695236 = 459370^2 + 107106^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (222492492137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13905780751 + ... + 13905780766.

Almost surely, 2^222492492136 is an apocalyptic number.

It is an amenable number.

222492492136 is a deficient number, since it is larger than the sum of its proper divisors (194680930634).

222492492136 is a wasteful number, since it uses less digits than its factorization.

222492492136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27811561523 (or 27811561519 counting only the distinct ones).

The product of its digits is 746496, while the sum is 46.

The spelling of 222492492136 in words is "two hundred twenty-two billion, four hundred ninety-two million, four hundred ninety-two thousand, one hundred thirty-six".