222220423204021 has 8 divisors (see below), whose sum is σ = 242438363253504. Its totient is φ = 202005163720320.

The previous prime is 222220423203991. The next prime is 222220423204051. The reversal of 222220423204021 is 120402324022222.

222220423204021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (222220423203991) and next prime (222220423204051).

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 222220423204021 - 2²⁵ = 222220389649589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222220423204051) 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, 669968101 + ... + 670299706.

It is an arithmetic number, because the mean of its divisors is an integer number (30304795406688).

Almost surely, 2^{222220423204021} is an apocalyptic number.

It is an amenable number.

222220423204021 is a deficient number, since it is larger than the sum of its proper divisors (20217940049483).

222220423204021 is a wasteful number, since it uses less digits than its factorization.

222220423204021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1340282891.

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 222220423204021 its reverse (120402324022222), we get a palindrome (342622747226243).

The spelling of 222220423204021 in words is "two hundred twenty-two trillion, two hundred twenty billion, four hundred twenty-three million, two hundred four thousand, twenty-one".