22200121 has 8 divisors (see below), whose sum is σ = 22800384. Its totient is φ = 21605280.

The previous prime is 22200119. The next prime is 22200131. The reversal of 22200121 is 12100222.

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

It is a cyclic number.

It is not a de Polignac number, because 22200121 - 2¹ = 22200119 is a prime.

It is a super-4 number, since 4×22200121⁴ (a number of 30 digits) contains 4444 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22200098 and 22200107.

It is not an unprimeable number, because it can be changed into a prime (22200131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7741 + ... + 10213.

It is an arithmetic number, because the mean of its divisors is an integer number (2850048).

Almost surely, 2^22200121 is an apocalyptic number.

It is an amenable number.

22200121 is a deficient number, since it is larger than the sum of its proper divisors (600263).

22200121 is a wasteful number, since it uses less digits than its factorization.

22200121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2711.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 22200121 is about 4711.7004361483. The cubic root of 22200121 is about 281.0509863874.

Adding to 22200121 its reverse (12100222), we get a palindrome (34300343).

The spelling of 22200121 in words is "twenty-two million, two hundred thousand, one hundred twenty-one".