122222101 has 4 divisors (see below), whose sum is σ = 124225804. Its totient is φ = 120218400.

The previous prime is 122222071. The next prime is 122222131. The reversal of 122222101 is 101222221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 101222221 = 317 ⋅319313.

It is an interprime number because it is at equal distance from previous prime (122222071) and next prime (122222131).

It can be written as a sum of positive squares in 2 ways, for example, as 8820900 + 113401201 = 2970^2 + 10649^2 .

It is a cyclic number.

It is not a de Polignac number, because 122222101 - 2¹⁷ = 122091029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122222131) 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, 1001760 + ... + 1001881.

It is an arithmetic number, because the mean of its divisors is an integer number (31056451).

Almost surely, 2^122222101 is an apocalyptic number.

It is an amenable number.

122222101 is a deficient number, since it is larger than the sum of its proper divisors (2003703).

122222101 is an equidigital number, since it uses as much as digits as its factorization.

122222101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2003702.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 122222101 is about 11055.4104853687. The cubic root of 122222101 is about 496.2683535818.

Adding to 122222101 its reverse (101222221), we get a palindrome (223444322).

The spelling of 122222101 in words is "one hundred twenty-two million, two hundred twenty-two thousand, one hundred one".