101221220222123 has 2 divisors, whose sum is σ = 101221220222124. Its totient is φ = 101221220222122.

The previous prime is 101221220222113. The next prime is 101221220222167. The reversal of 101221220222123 is 321222022122101.

It is a weak prime.

It is an emirp because it is prime and its reverse (321222022122101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101221220222123 - 2²⁶ = 101221153113259 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (101221220222113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50610610111061 + 50610610111062.

It is an arithmetic number, because the mean of its divisors is an integer number (50610610111062).

Almost surely, 2^{101221220222123} is an apocalyptic number.

101221220222123 is a deficient number, since it is larger than the sum of its proper divisors (1).

101221220222123 is an equidigital number, since it uses as much as digits as its factorization.

101221220222123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 101221220222123 its reverse (321222022122101), we get a palindrome (422443242344224).

The spelling of 101221220222123 in words is "one hundred one trillion, two hundred twenty-one billion, two hundred twenty million, two hundred twenty-two thousand, one hundred twenty-three".