222210003121 has 4 divisors (see below), whose sum is σ = 222305007600. Its totient is φ = 222114998644.

The previous prime is 222210003097. The next prime is 222210003131. The reversal of 222210003121 is 121300012222.

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 222210003121 - 2²⁹ = 221673132209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222210003095 and 222210003104.

It is not an unprimeable number, because it can be changed into a prime (222210003131) 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, 47498731 + ... + 47503408.

It is an arithmetic number, because the mean of its divisors is an integer number (55576251900).

Almost surely, 2^222210003121 is an apocalyptic number.

It is an amenable number.

222210003121 is a deficient number, since it is larger than the sum of its proper divisors (95004479).

222210003121 is an equidigital number, since it uses as much as digits as its factorization.

222210003121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95004478.

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

Adding to 222210003121 its reverse (121300012222), we get a palindrome (343510015343).

The spelling of 222210003121 in words is "two hundred twenty-two billion, two hundred ten million, three thousand, one hundred twenty-one".