1222442250221 has 8 divisors (see below), whose sum is σ = 1232056046784. Its totient is φ = 1212838466400.

The previous prime is 1222442250193. The next prime is 1222442250251. The reversal of 1222442250221 is 1220522442221.

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 1222442250221 - 2⁶ = 1222442250157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222442250251) 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, 2257955 + ... + 2746496.

It is an arithmetic number, because the mean of its divisors is an integer number (154007005848).

Almost surely, 2^{1222442250221} is an apocalyptic number.

It is an amenable number.

1222442250221 is a deficient number, since it is larger than the sum of its proper divisors (9613796563).

1222442250221 is a wasteful number, since it uses less digits than its factorization.

1222442250221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5006371.

The product of its (nonzero) digits is 10240, while the sum is 29.

Adding to 1222442250221 its reverse (1220522442221), we get a palindrome (2442964692442).

The spelling of 1222442250221 in words is "one trillion, two hundred twenty-two billion, four hundred forty-two million, two hundred fifty thousand, two hundred twenty-one".