121441712550 has 48 divisors (see below), whose sum is σ = 318891656592. Its totient is φ = 30479488000.

The previous prime is 121441712537. The next prime is 121441712621. The reversal of 121441712550 is 55217144121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23809551 + ... + 23814650.

It is an arithmetic number, because the mean of its divisors is an integer number (6643576179).

Almost surely, 2^121441712550 is an apocalyptic number.

121441712550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121441712550 is an abundant number, since it is smaller than the sum of its proper divisors (197449944042).

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

121441712550 is a wasteful number, since it uses less digits than its factorization.

121441712550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47624233 (or 47624228 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 33.

Adding to 121441712550 its reverse (55217144121), we get a palindrome (176658856671).

The spelling of 121441712550 in words is "one hundred twenty-one billion, four hundred forty-one million, seven hundred twelve thousand, five hundred fifty".