121004443123220 has 12 divisors (see below), whose sum is σ = 254109330558804. Its totient is φ = 48401777249280.

The previous prime is 121004443123183. The next prime is 121004443123241. The reversal of 121004443123220 is 22321344400121.

It can be written as a sum of positive squares in 2 ways, for example, as 22180445190544 + 98823997932676 = 4709612^2 + 9941026^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3025111078061 + ... + 3025111078100.

It is an arithmetic number, because the mean of its divisors is an integer number (21175777546567).

Almost surely, 2^{121004443123220} is an apocalyptic number.

121004443123220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121004443123220 is an abundant number, since it is smaller than the sum of its proper divisors (133104887435584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121004443123220 is a wasteful number, since it uses less digits than its factorization.

121004443123220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6050222156170 (or 6050222156168 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 121004443123220 its reverse (22321344400121), we get a palindrome (143325787523341).

The spelling of 121004443123220 in words is "one hundred twenty-one trillion, four billion, four hundred forty-three million, one hundred twenty-three thousand, two hundred twenty".