122111101 has 4 divisors (see below), whose sum is σ = 139555552. Its totient is φ = 104666652.

The previous prime is 122111089. The next prime is 122111111. The reversal of 122111101 is 101111221.

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, and also an emirpimes, since its reverse is a distinct semiprime: 101111221 = 61 ⋅1657561.

It is a cyclic number.

It is not a de Polignac number, because 122111101 - 2¹⁹ = 121586813 is a prime.

It is a super-2 number, since 2×122111101² = 29822241974864402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122111111) 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, 8722215 + ... + 8722228.

It is an arithmetic number, because the mean of its divisors is an integer number (34888888).

Almost surely, 2^122111101 is an apocalyptic number.

It is an amenable number.

122111101 is a deficient number, since it is larger than the sum of its proper divisors (17444451).

122111101 is an equidigital number, since it uses as much as digits as its factorization.

122111101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17444450.

The product of its (nonzero) digits is 4, while the sum is 10.

The square root of 122111101 is about 11050.3891786670. The cubic root of 122111101 is about 496.1180739646.

Adding to 122111101 its reverse (101111221), we get a palindrome (223222322).

The spelling of 122111101 in words is "one hundred twenty-two million, one hundred eleven thousand, one hundred one".