1222244422221 has 64 divisors (see below), whose sum is σ = 1734628946688. Its totient is φ = 764606988288.

The previous prime is 1222244422207. The next prime is 1222244422253.

It is a happy number.

1222244422221 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1222244422221 - 2⁹ = 1222244421709 is a prime.

It is a super-2 number, since 2×1222244422221² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222244422921) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 74369221 + ... + 74385653.

It is an arithmetic number, because the mean of its divisors is an integer number (27103577292).

Almost surely, 2^{1222244422221} is an apocalyptic number.

It is an amenable number.

1222244422221 is a deficient number, since it is larger than the sum of its proper divisors (512384524467).

1222244422221 is a wasteful number, since it uses less digits than its factorization.

1222244422221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16750.

The product of its digits is 16384, while the sum is 30.

The spelling of 1222244422221 in words is "one trillion, two hundred twenty-two billion, two hundred forty-four million, four hundred twenty-two thousand, two hundred twenty-one".