121045440102 has 16 divisors (see below), whose sum is σ = 256331520432.
Its totient is φ = 37975040000.
The previous prime is 121045440101. The next prime is 121045440167. The reversal of 121045440102 is 201044540121.
Adding to 121045440102 its reverse (201044540121), we get a palindrome (322089980223).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (121045440101) 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, 593359899 + ... + 593360102.
It is an arithmetic number, because the mean of its divisors is an integer number (16020720027).
Almost surely, 2121045440102 is an apocalyptic number.
121045440102 is an abundant number, since it is smaller than the sum of its proper divisors (135286080330).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
121045440102 is a wasteful number, since it uses less digits than its factorization.
121045440102 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1186720023.
The product of its (nonzero) digits is 1280, while the sum is 24.
The spelling of 121045440102 in words is "one hundred twenty-one billion, forty-five million, four hundred forty thousand, one hundred two".