20001201223 has 2 divisors, whose sum is σ = 20001201224. Its totient is φ = 20001201222.

The previous prime is 20001201193. The next prime is 20001201229. The reversal of 20001201223 is 32210210002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20001201223 - 2⁵ = 20001201191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20001201229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000600611 + 10000600612.

It is an arithmetic number, because the mean of its divisors is an integer number (10000600612).

Almost surely, 2^20001201223 is an apocalyptic number.

20001201223 is a deficient number, since it is larger than the sum of its proper divisors (1).

20001201223 is an equidigital number, since it uses as much as digits as its factorization.

20001201223 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 13.

Adding to 20001201223 its reverse (32210210002), we get a palindrome (52211411225).

The spelling of 20001201223 in words is "twenty billion, one million, two hundred one thousand, two hundred twenty-three".