222111220101 has 4 divisors (see below), whose sum is σ = 296148293472. Its totient is φ = 148074146732.

The previous prime is 222111220031. The next prime is 222111220157. The reversal of 222111220101 is 101022111222.

222111220101 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 222111220101 - 2¹¹ = 222111218053 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222111220171) 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, 37018536681 + ... + 37018536686.

It is an arithmetic number, because the mean of its divisors is an integer number (74037073368).

Almost surely, 2^222111220101 is an apocalyptic number.

It is an amenable number.

222111220101 is a deficient number, since it is larger than the sum of its proper divisors (74037073371).

222111220101 is an equidigital number, since it uses as much as digits as its factorization.

222111220101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74037073370.

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

Adding to 222111220101 its reverse (101022111222), we get a palindrome (323133331323).

The spelling of 222111220101 in words is "two hundred twenty-two billion, one hundred eleven million, two hundred twenty thousand, one hundred one".