121222220210023 has 2 divisors, whose sum is σ = 121222220210024. Its totient is φ = 121222220210022.

The previous prime is 121222220209999. The next prime is 121222220210053. The reversal of 121222220210023 is 320012022222121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121222220210023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121222220209976 and 121222220210003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121222220210053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60611110105011 + 60611110105012.

It is an arithmetic number, because the mean of its divisors is an integer number (60611110105012).

Almost surely, 2^{121222220210023} is an apocalyptic number.

121222220210023 is a deficient number, since it is larger than the sum of its proper divisors (1).

121222220210023 is an equidigital number, since it uses as much as digits as its factorization.

121222220210023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 121222220210023 its reverse (320012022222121), we get a palindrome (441234242432144).

The spelling of 121222220210023 in words is "one hundred twenty-one trillion, two hundred twenty-two billion, two hundred twenty million, two hundred ten thousand, twenty-three".