22130121 has 8 divisors (see below), whose sum is σ = 31776640. Its totient is φ = 13618512.

The previous prime is 22130113. The next prime is 22130137. The reversal of 22130121 is 12103122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22130121 - 2³ = 22130113 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 22130097 and 22130106.

It is not an unprimeable number, because it can be changed into a prime (22130221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283681 + ... + 283758.

It is an arithmetic number, because the mean of its divisors is an integer number (3972080).

Almost surely, 2^22130121 is an apocalyptic number.

It is an amenable number.

22130121 is a deficient number, since it is larger than the sum of its proper divisors (9646519).

22130121 is a wasteful number, since it uses less digits than its factorization.

22130121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567455.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 22130121 is about 4704.2662552198. The cubic root of 22130121 is about 280.7552780418.

Adding to 22130121 its reverse (12103122), we get a palindrome (34233243).

The spelling of 22130121 in words is "twenty-two million, one hundred thirty thousand, one hundred twenty-one".