22002221001222 has 96 divisors (see below), whose sum is σ = 59437759230720. Its totient is φ = 5714556039360.

The previous prime is 22002221001157. The next prime is 22002221001259. The reversal of 22002221001222 is 22210012220022.

22002221001222 is a `hidden beast` number, since 220 + 0 + 2 + 221 + 0 + 0 + 1 + 222 = 666.

It is a super-2 number, since 2×22002221001222² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 22002221001195 and 22002221001204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26013393 + ... + 26845875.

It is an arithmetic number, because the mean of its divisors is an integer number (619143325320).

Almost surely, 2^{22002221001222} is an apocalyptic number.

22002221001222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22002221001222 is an abundant number, since it is smaller than the sum of its proper divisors (37435538229498).

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

22002221001222 is a wasteful number, since it uses less digits than its factorization.

22002221001222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 851578 (or 851575 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 22002221001222 its reverse (22210012220022), we get a palindrome (44212233221244).

The spelling of 22002221001222 in words is "twenty-two trillion, two billion, two hundred twenty-one million, one thousand, two hundred twenty-two".