222878181828772 has 24 divisors (see below), whose sum is σ = 399446436094272. Its totient is φ = 108781709148000.

The previous prime is 222878181828769. The next prime is 222878181828779. The reversal of 222878181828772 is 277828181878222.

It is a junction number, because it is equal to n+sod(n) for n = 222878181828695 and 222878181828704.

It is not an unprimeable number, because it can be changed into a prime (222878181828779) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3885032358 + ... + 3885089725.

It is an arithmetic number, because the mean of its divisors is an integer number (16643601503928).

Almost surely, 2^{222878181828772} is an apocalyptic number.

It is an amenable number.

222878181828772 is a deficient number, since it is larger than the sum of its proper divisors (176568254265500).

222878181828772 is a wasteful number, since it uses less digits than its factorization.

222878181828772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7770122259 (or 7770122257 counting only the distinct ones).

The product of its digits is 359661568, while the sum is 73.

The spelling of 222878181828772 in words is "two hundred twenty-two trillion, eight hundred seventy-eight billion, one hundred eighty-one million, eight hundred twenty-eight thousand, seven hundred seventy-two".