121055524421 has 8 divisors (see below), whose sum is σ = 130370577120. Its totient is φ = 111740913072.

The previous prime is 121055524411. The next prime is 121055524423. The reversal of 121055524421 is 124425550121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121055524421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121055524423) 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, 657050 + ... + 820868.

It is an arithmetic number, because the mean of its divisors is an integer number (16296322140).

Almost surely, 2^121055524421 is an apocalyptic number.

It is an amenable number.

121055524421 is a deficient number, since it is larger than the sum of its proper divisors (9315052699).

121055524421 is a wasteful number, since it uses less digits than its factorization.

121055524421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220675.

The product of its (nonzero) digits is 16000, while the sum is 32.

The spelling of 121055524421 in words is "one hundred twenty-one billion, fifty-five million, five hundred twenty-four thousand, four hundred twenty-one".