222320101021 has 4 divisors (see below), whose sum is σ = 225638311552. Its totient is φ = 219001890492.

The previous prime is 222320100973. The next prime is 222320101037. The reversal of 222320101021 is 120101023222.

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 a de Polignac number, because none of the positive numbers 2^k-222320101021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222320100986 and 222320101004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222320101721) 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, 1659105165 + ... + 1659105298.

It is an arithmetic number, because the mean of its divisors is an integer number (56409577888).

Almost surely, 2^222320101021 is an apocalyptic number.

It is an amenable number.

222320101021 is a deficient number, since it is larger than the sum of its proper divisors (3318210531).

222320101021 is an equidigital number, since it uses as much as digits as its factorization.

222320101021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3318210530.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 222320101021 its reverse (120101023222), we get a palindrome (342421124243).

The spelling of 222320101021 in words is "two hundred twenty-two billion, three hundred twenty million, one hundred one thousand, twenty-one".