22110121 has 16 divisors (see below), whose sum is σ = 24873408. Its totient is φ = 19483200.

The previous prime is 22110103. The next prime is 22110139. The reversal of 22110121 is 12101122.

It is an interprime number because it is at equal distance from previous prime (22110103) and next prime (22110139).

It is not a de Polignac number, because 22110121 - 2⁵ = 22110089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22110098 and 22110107.

It is not an unprimeable number, because it can be changed into a prime (22111121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 55495 + ... + 55891.

It is an arithmetic number, because the mean of its divisors is an integer number (1554588).

Almost surely, 2^22110121 is an apocalyptic number.

It is an amenable number.

22110121 is a deficient number, since it is larger than the sum of its proper divisors (2763287).

22110121 is a wasteful number, since it uses less digits than its factorization.

22110121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 22110121 is about 4702.1400447030. The cubic root of 22110121 is about 280.6706754323.

Adding to 22110121 its reverse (12101122), we get a palindrome (34211243).

It can be divided in two parts, 221101 and 21, that added together give a palindrome (221122).

The spelling of 22110121 in words is "twenty-two million, one hundred ten thousand, one hundred twenty-one".