222136992 has 432 divisors, whose sum is σ = 847016352. Its totient is φ = 56609280.

The previous prime is 222136973. The next prime is 222136997. The reversal of 222136992 is 299631222.

It is a tau number, because it is divible by the number of its divisors (432).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (222136997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4191238 + ... + 4191290.

It is an arithmetic number, because the mean of its divisors is an integer number (1960686).

Almost surely, 2^222136992 is an apocalyptic number.

222136992 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222136992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (423508176).

222136992 is an abundant number, since it is smaller than the sum of its proper divisors (624879360).

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

222136992 is a wasteful number, since it uses less digits than its factorization.

222136992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103 (or 76 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 222136992 is about 14904.2608672822. The cubic root of 222136992 is about 605.6294175794.

The spelling of 222136992 in words is "two hundred twenty-two million, one hundred thirty-six thousand, nine hundred ninety-two".