121335441425 has 24 divisors (see below), whose sum is σ = 171270020160. Its totient is φ = 84407259200.

The previous prime is 121335441391. The next prime is 121335441449. The reversal of 121335441425 is 524144533121.

It is not a de Polignac number, because 121335441425 - 2³⁶ = 52615964689 is a prime.

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, 9585410 + ... + 9598059.

It is an arithmetic number, because the mean of its divisors is an integer number (7136250840).

Almost surely, 2^121335441425 is an apocalyptic number.

It is an amenable number.

121335441425 is a deficient number, since it is larger than the sum of its proper divisors (49934578735).

121335441425 is a wasteful number, since it uses less digits than its factorization.

121335441425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19183513 (or 19183508 counting only the distinct ones).

The product of its digits is 57600, while the sum is 35.

Adding to 121335441425 its reverse (524144533121), we get a palindrome (645479974546).

The spelling of 121335441425 in words is "one hundred twenty-one billion, three hundred thirty-five million, four hundred forty-one thousand, four hundred twenty-five".