222222201101 has 2 divisors, whose sum is σ = 222222201102. Its totient is φ = 222222201100.

The previous prime is 222222201073. The next prime is 222222201191. The reversal of 222222201101 is 101102222222.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 187165255876 + 35056945225 = 432626^2 + 187235^2 .

It is a cyclic number.

It is not a de Polignac number, because 222222201101 - 2⁶ = 222222201037 is a prime.

It is a super-2 number, since 2×222222201101² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 222222201101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222222201191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111111100550 + 111111100551.

It is an arithmetic number, because the mean of its divisors is an integer number (111111100551).

Almost surely, 2^222222201101 is an apocalyptic number.

It is an amenable number.

222222201101 is a deficient number, since it is larger than the sum of its proper divisors (1).

222222201101 is an equidigital number, since it uses as much as digits as its factorization.

222222201101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 222222201101 its reverse (101102222222), we get a palindrome (323324423323).

The spelling of 222222201101 in words is "two hundred twenty-two billion, two hundred twenty-two million, two hundred one thousand, one hundred one".