222506689140 has 72 divisors (see below), whose sum is σ = 675628317000. Its totient is φ = 59274338304.

The previous prime is 222506689127. The next prime is 222506689147. The reversal of 222506689140 is 41986605222.

222506689140 is a `hidden beast` number, since 2 + 22 + 506 + 6 + 89 + 1 + 40 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 25162842384 + 197343846756 = 158628^2 + 444234^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222506689147) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 456765 + ... + 808484.

It is an arithmetic number, because the mean of its divisors is an integer number (9383726625).

Almost surely, 2^222506689140 is an apocalyptic number.

222506689140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222506689140 is an abundant number, since it is smaller than the sum of its proper divisors (453121627860).

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

222506689140 is a wasteful number, since it uses less digits than its factorization.

222506689140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266241 (or 1266236 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 222506689140 in words is "two hundred twenty-two billion, five hundred six million, six hundred eighty-nine thousand, one hundred forty".