222002224021 has 4 divisors (see below), whose sum is σ = 222003588352. Its totient is φ = 222000859692.

The previous prime is 222002224009. The next prime is 222002224027. The reversal of 222002224021 is 120422200222.

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 222002224021 - 2³⁷ = 84563270549 is a prime.

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 222002224021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222002224027) 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, 398871 + ... + 776596.

It is an arithmetic number, because the mean of its divisors is an integer number (55500897088).

Almost surely, 2^222002224021 is an apocalyptic number.

It is an amenable number.

222002224021 is a deficient number, since it is larger than the sum of its proper divisors (1364331).

222002224021 is a wasteful number, since it uses less digits than its factorization.

222002224021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1364330.

The product of its (nonzero) digits is 512, while the sum is 19.

Adding to 222002224021 its reverse (120422200222), we get a palindrome (342424424243).

The spelling of 222002224021 in words is "two hundred twenty-two billion, two million, two hundred twenty-four thousand, twenty-one".