822111245952 has 64 divisors (see below), whose sum is σ = 2312187897600. Its totient is φ = 257917251584.

The previous prime is 822111245911. The next prime is 822111245959. The reversal of 822111245952 is 259542111228.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-3 number, since 3×822111245952³ (a number of 37 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (822111245959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62961552 + ... + 62974607.

It is an arithmetic number, because the mean of its divisors is an integer number (36127935900).

Almost surely, 2^822111245952 is an apocalyptic number.

It is an amenable number.

822111245952 is an abundant number, since it is smaller than the sum of its proper divisors (1490076651648).

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

822111245952 is a wasteful number, since it uses less digits than its factorization.

822111245952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125936193 (or 125936181 counting only the distinct ones).

The product of its digits is 115200, while the sum is 42.

The spelling of 822111245952 in words is "eight hundred twenty-two billion, one hundred eleven million, two hundred forty-five thousand, nine hundred fifty-two".