102100443122 has 8 divisors (see below), whose sum is σ = 153203176236. Its totient is φ = 51032717712.

The previous prime is 102100443121. The next prime is 102100443139. The reversal of 102100443122 is 221344001201.

It can be written as a sum of positive squares in 2 ways, for example, as 102100059961 + 383161 = 319531^2 + 619^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 102100443094 and 102100443103.

It is not an unprimeable number, because it can be changed into a prime (102100443121) 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, 8744633 + ... + 8756300.

Almost surely, 2^102100443122 is an apocalyptic number.

102100443122 is a deficient number, since it is larger than the sum of its proper divisors (51102733114).

102100443122 is a wasteful number, since it uses less digits than its factorization.

102100443122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17503852.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 102100443122 its reverse (221344001201), we get a palindrome (323444444323).

The spelling of 102100443122 in words is "one hundred two billion, one hundred million, four hundred forty-three thousand, one hundred twenty-two".