22201032121 has 4 divisors (see below), whose sum is σ = 22206092544. Its totient is φ = 22195971700.

The previous prime is 22201032097. The next prime is 22201032169. The reversal of 22201032121 is 12123010222.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 22201032121 - 2⁵ = 22201032089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22201032095 and 22201032104.

It is not an unprimeable number, because it can be changed into a prime (22201032181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2523625 + ... + 2532406.

It is an arithmetic number, because the mean of its divisors is an integer number (5551523136).

Almost surely, 2^22201032121 is an apocalyptic number.

It is an amenable number.

22201032121 is a deficient number, since it is larger than the sum of its proper divisors (5060423).

22201032121 is an equidigital number, since it uses as much as digits as its factorization.

22201032121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5060422.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 22201032121 its reverse (12123010222), we get a palindrome (34324042343).

The spelling of 22201032121 in words is "twenty-two billion, two hundred one million, thirty-two thousand, one hundred twenty-one".