220022212121923 has 2 divisors, whose sum is σ = 220022212121924. Its totient is φ = 220022212121922.

The previous prime is 220022212121903. The next prime is 220022212122007. The reversal of 220022212121923 is 329121212220022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220022212121923 - 2⁵ = 220022212121891 is a prime.

It is not a weakly prime, because it can be changed into another prime (220022212121903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110011106060961 + 110011106060962.

It is an arithmetic number, because the mean of its divisors is an integer number (110011106060962).

Almost surely, 2^{220022212121923} is an apocalyptic number.

220022212121923 is a deficient number, since it is larger than the sum of its proper divisors (1).

220022212121923 is an equidigital number, since it uses as much as digits as its factorization.

220022212121923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 31.

Adding to 220022212121923 its reverse (329121212220022), we get a palindrome (549143424341945).

The spelling of 220022212121923 in words is "two hundred twenty trillion, twenty-two billion, two hundred twelve million, one hundred twenty-one thousand, nine hundred twenty-three".