23220001121 has 8 divisors (see below), whose sum is σ = 23513000040. Its totient is φ = 22927715712.

The previous prime is 23220001109. The next prime is 23220001139. The reversal of 23220001121 is 12110002232.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1985682721 + 21234318400 = 44561^2 + 145720^2 .

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 23220001121 - 2¹⁴ = 23219984737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23220001096 and 23220001105.

It is not an unprimeable number, because it can be changed into a prime (23220001621) 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, 112730 + ... + 243203.

It is an arithmetic number, because the mean of its divisors is an integer number (2939125005).

Almost surely, 2^23220001121 is an apocalyptic number.

It is an amenable number.

23220001121 is a deficient number, since it is larger than the sum of its proper divisors (292998919).

23220001121 is an equidigital number, since it uses as much as digits as its factorization.

23220001121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356755.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 23220001121 its reverse (12110002232), we get a palindrome (35330003353).

The spelling of 23220001121 in words is "twenty-three billion, two hundred twenty million, one thousand, one hundred twenty-one".