121532053224 has 128 divisors (see below), whose sum is σ = 321658128000. Its totient is φ = 38205533184.

The previous prime is 121532053187. The next prime is 121532053301. The reversal of 121532053224 is 422350235121.

It is a junction number, because it is equal to n+sod(n) for n = 121532053191 and 121532053200.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8440159 + ... + 8454545.

It is an arithmetic number, because the mean of its divisors is an integer number (2512954125).

Almost surely, 2^121532053224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121532053224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160829064000).

121532053224 is an abundant number, since it is smaller than the sum of its proper divisors (200126074776).

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

121532053224 is a wasteful number, since it uses less digits than its factorization.

121532053224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14707 (or 14703 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 121532053224 its reverse (422350235121), we get a palindrome (543882288345).

The spelling of 121532053224 in words is "one hundred twenty-one billion, five hundred thirty-two million, fifty-three thousand, two hundred twenty-four".