10002121223 has 2 divisors, whose sum is σ = 10002121224. Its totient is φ = 10002121222.

The previous prime is 10002121153. The next prime is 10002121231. The reversal of 10002121223 is 32212120001.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10002121223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10002121198 and 10002121207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10002121243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5001060611 + 5001060612.

It is an arithmetic number, because the mean of its divisors is an integer number (5001060612).

Almost surely, 2^10002121223 is an apocalyptic number.

10002121223 is a deficient number, since it is larger than the sum of its proper divisors (1).

10002121223 is an equidigital number, since it uses as much as digits as its factorization.

10002121223 is an evil number, because the sum of its binary digits is even.

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

Adding to 10002121223 its reverse (32212120001), we get a palindrome (42214241224).

The spelling of 10002121223 in words is "ten billion, two million, one hundred twenty-one thousand, two hundred twenty-three".