23220412121 has 2 divisors, whose sum is σ = 23220412122. Its totient is φ = 23220412120.

The previous prime is 23220412063. The next prime is 23220412133. The reversal of 23220412121 is 12121402232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22776846400 + 443565721 = 150920^2 + 21061^2 .

It is a cyclic number.

It is not a de Polignac number, because 23220412121 - 2⁶ = 23220412057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23220412093 and 23220412102.

It is not a weakly prime, because it can be changed into another prime (23220412021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11610206060 + 11610206061.

It is an arithmetic number, because the mean of its divisors is an integer number (11610206061).

Almost surely, 2^23220412121 is an apocalyptic number.

It is an amenable number.

23220412121 is a deficient number, since it is larger than the sum of its proper divisors (1).

23220412121 is an equidigital number, since it uses as much as digits as its factorization.

23220412121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 23220412121 its reverse (12121402232), we get a palindrome (35341814353).

The spelling of 23220412121 in words is "twenty-three billion, two hundred twenty million, four hundred twelve thousand, one hundred twenty-one".