2222225124221 has 4 divisors (see below), whose sum is σ = 2222228377344. Its totient is φ = 2222221871100.

The previous prime is 2222225124199. The next prime is 2222225124239. The reversal of 2222225124221 is 1224215222222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2222225124221 - 2¹⁰ = 2222225123197 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 (2222224124221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162845 + ... + 2114466.

It is an arithmetic number, because the mean of its divisors is an integer number (555557094336).

Almost surely, 2^{2222225124221} is an apocalyptic number.

It is an amenable number.

2222225124221 is a deficient number, since it is larger than the sum of its proper divisors (3253123).

2222225124221 is an equidigital number, since it uses as much as digits as its factorization.

2222225124221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3253122.

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

The spelling of 2222225124221 in words is "two trillion, two hundred twenty-two billion, two hundred twenty-five million, one hundred twenty-four thousand, two hundred twenty-one".