22003200121 has 4 divisors (see below), whose sum is σ = 25146514432. Its totient is φ = 18859885812.

The previous prime is 22003200101. The next prime is 22003200169. The reversal of 22003200121 is 12100230022.

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: 12100230022 = 2 ⋅6050115011.

It is a cyclic number.

It is not a de Polignac number, because 22003200121 - 2¹³ = 22003191929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22003200101) 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, 1571657145 + ... + 1571657158.

It is an arithmetic number, because the mean of its divisors is an integer number (6286628608).

Almost surely, 2^22003200121 is an apocalyptic number.

It is an amenable number.

22003200121 is a deficient number, since it is larger than the sum of its proper divisors (3143314311).

22003200121 is an equidigital number, since it uses as much as digits as its factorization.

22003200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3143314310.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 22003200121 its reverse (12100230022), we get a palindrome (34103430143).

The spelling of 22003200121 in words is "twenty-two billion, three million, two hundred thousand, one hundred twenty-one".