1222422242221 has 8 divisors (see below), whose sum is σ = 1224902770560. Its totient is φ = 1219941914352.

The previous prime is 1222422242201. The next prime is 1222422242287.

It is a happy number.

1222422242221 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1222422242221 - 2¹⁵ = 1222422209453 is a prime.

It is a super-2 number, since 2×1222422242221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1222422242221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222422242201) 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, 21277891 + ... + 21335263.

It is an arithmetic number, because the mean of its divisors is an integer number (153112846320).

Almost surely, 2^{1222422242221} is an apocalyptic number.

It is an amenable number.

1222422242221 is a deficient number, since it is larger than the sum of its proper divisors (2480528339).

1222422242221 is an equidigital number, since it uses as much as digits as its factorization.

1222422242221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100235.

The product of its digits is 8192, while the sum is 28.

The spelling of 1222422242221 in words is "one trillion, two hundred twenty-two billion, four hundred twenty-two million, two hundred forty-two thousand, two hundred twenty-one".