6442356123222 has 16 divisors (see below), whose sum is σ = 12886886218752. Its totient is φ = 2147089712360.

The previous prime is 6442356123221. The next prime is 6442356123223. The reversal of 6442356123222 is 2223216532446.

It is an interprime number because it is at equal distance from previous prime (6442356123221) and next prime (6442356123223).

It is a super-2 number, since 2×6442356123222² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6442356123221) 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, 90543654 + ... + 90614777.

It is an arithmetic number, because the mean of its divisors is an integer number (805430388672).

Almost surely, 2^{6442356123222} is an apocalyptic number.

6442356123222 is an abundant number, since it is smaller than the sum of its proper divisors (6444530095530).

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

6442356123222 is a wasteful number, since it uses less digits than its factorization.

6442356123222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181164363.

The product of its digits is 829440, while the sum is 42.

The spelling of 6442356123222 in words is "six trillion, four hundred forty-two billion, three hundred fifty-six million, one hundred twenty-three thousand, two hundred twenty-two".