222030111021 has 4 divisors (see below), whose sum is σ = 296040148032. Its totient is φ = 148020074012.

The previous prime is 222030111011. The next prime is 222030111067. The reversal of 222030111021 is 120111030222.

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 222030111021 - 2⁶ = 222030110957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222030111011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37005018501 + ... + 37005018506.

It is an arithmetic number, because the mean of its divisors is an integer number (74010037008).

Almost surely, 2^222030111021 is an apocalyptic number.

It is an amenable number.

222030111021 is a deficient number, since it is larger than the sum of its proper divisors (74010037011).

222030111021 is an equidigital number, since it uses as much as digits as its factorization.

222030111021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74010037010.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 222030111021 its reverse (120111030222), we get a palindrome (342141141243).

It can be divided in two parts, 2220301 and 11021, that added together give a palindrome (2231322).

The spelling of 222030111021 in words is "two hundred twenty-two billion, thirty million, one hundred eleven thousand, twenty-one".