102223101012121 has 4 divisors (see below), whose sum is σ = 102223123752244. Its totient is φ = 102223078272000.

The previous prime is 102223101012119. The next prime is 102223101012143. The reversal of 102223101012121 is 121210101322201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 82167607683225 + 20055493328896 = 9064635^2 + 4478336^2 .

It is a cyclic number.

It is not a de Polignac number, because 102223101012121 - 2¹ = 102223101012119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102223101012181) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2117160 + ... + 14454361.

It is an arithmetic number, because the mean of its divisors is an integer number (25555780938061).

Almost surely, 2^{102223101012121} is an apocalyptic number.

It is an amenable number.

102223101012121 is a deficient number, since it is larger than the sum of its proper divisors (22740123).

102223101012121 is an equidigital number, since it uses as much as digits as its factorization.

102223101012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22740122.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 102223101012121 its reverse (121210101322201), we get a palindrome (223433202334322).

The spelling of 102223101012121 in words is "one hundred two trillion, two hundred twenty-three billion, one hundred one million, twelve thousand, one hundred twenty-one".