222209946786780 has 96 divisors (see below), whose sum is σ = 699854647356480. Its totient is φ = 59255985798144.

The previous prime is 222209946786683. The next prime is 222209946786811. The reversal of 222209946786780 is 87687649902222.

222209946786780 is a `hidden beast` number, since 2 + 2 + 2 + 2 + 0 + 9 + 9 + 467 + 86 + 7 + 80 = 666.

222209946786780 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 222209946786699 and 222209946786708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2540079109 + ... + 2540166588.

It is an arithmetic number, because the mean of its divisors is an integer number (7290152576630).

Almost surely, 2^{222209946786780} is an apocalyptic number.

222209946786780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222209946786780 is an abundant number, since it is smaller than the sum of its proper divisors (477644700569700).

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

222209946786780 is an equidigital number, since it uses as much as digits as its factorization.

222209946786780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5080245727 (or 5080245707 counting only the distinct ones).

The product of its (nonzero) digits is 585252864, while the sum is 72.

The spelling of 222209946786780 in words is "two hundred twenty-two trillion, two hundred nine billion, nine hundred forty-six million, seven hundred eighty-six thousand, seven hundred eighty".