102044220121 has 8 divisors (see below), whose sum is σ = 102310267400. Its totient is φ = 101778498432.

The previous prime is 102044220107. The next prime is 102044220143. The reversal of 102044220121 is 121022440201.

It can be written as a sum of positive squares in 4 ways, for example, as 417793600 + 101626426521 = 20440^2 + 318789^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 102044220121 - 2²⁵ = 102010665689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102044320121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 552655 + ... + 713803.

It is an arithmetic number, because the mean of its divisors is an integer number (12788783425).

Almost surely, 2^102044220121 is an apocalyptic number.

It is an amenable number.

102044220121 is a deficient number, since it is larger than the sum of its proper divisors (266047279).

102044220121 is a wasteful number, since it uses less digits than its factorization.

102044220121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162795.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 102044220121 its reverse (121022440201), we get a palindrome (223066660322).

The spelling of 102044220121 in words is "one hundred two billion, forty-four million, two hundred twenty thousand, one hundred twenty-one".