842222885522 has 6 divisors (see below), whose sum is σ = 1263336275079. Its totient is φ = 421110793830.

The previous prime is 842222885507. The next prime is 842222885597. The reversal of 842222885522 is 225588222248.

It can be written as a sum of positive squares in only one way, i.e., 421111442761 + 421111442761 = 648931^2 + 648931^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=648931.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 973397 + ... + 1622327.

Almost surely, 2^842222885522 is an apocalyptic number.

842222885522 is a deficient number, since it is larger than the sum of its proper divisors (421113389557).

842222885522 is an frugal number, since it uses more digits than its factorization.

842222885522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1297864 (or 648933 counting only the distinct ones).

The product of its digits is 3276800, while the sum is 50.

Multiplying 842222885522 by its sum of digits (50), we get a square (42111144276100 = 6489310²).

The spelling of 842222885522 in words is "eight hundred forty-two billion, two hundred twenty-two million, eight hundred eighty-five thousand, five hundred twenty-two".