222021101121 has 4 divisors (see below), whose sum is σ = 296028134832. Its totient is φ = 148014067412.

The previous prime is 222021101117. The next prime is 222021101129. The reversal of 222021101121 is 121101120222.

222021101121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 222021101121 - 2² = 222021101117 is a prime.

It is a super-3 number, since 3×222021101121³ (a number of 35 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 222021101121.

It is not an unprimeable number, because it can be changed into a prime (222021101129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37003516851 + ... + 37003516856.

It is an arithmetic number, because the mean of its divisors is an integer number (74007033708).

Almost surely, 2^222021101121 is an apocalyptic number.

It is an amenable number.

222021101121 is a deficient number, since it is larger than the sum of its proper divisors (74007033711).

222021101121 is an equidigital number, since it uses as much as digits as its factorization.

222021101121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74007033710.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 222021101121 its reverse (121101120222), we get a palindrome (343122221343).

The spelling of 222021101121 in words is "two hundred twenty-two billion, twenty-one million, one hundred one thousand, one hundred twenty-one".