222113122129778 has 32 divisors (see below), whose sum is σ = 366685979045760. Its totient is φ = 100063860744960.

The previous prime is 222113122129777. The next prime is 222113122129807. The reversal of 222113122129778 is 877921221311222.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (222113122129777) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77364068 + ... + 80183696.

It is an arithmetic number, because the mean of its divisors is an integer number (11458936845180).

Almost surely, 2^{222113122129778} is an apocalyptic number.

222113122129778 is a deficient number, since it is larger than the sum of its proper divisors (144572856915982).

222113122129778 is a wasteful number, since it uses less digits than its factorization.

222113122129778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2851442.

The product of its digits is 677376, while the sum is 50.

The spelling of 222113122129778 in words is "two hundred twenty-two trillion, one hundred thirteen billion, one hundred twenty-two million, one hundred twenty-nine thousand, seven hundred seventy-eight".