121525441552 has 20 divisors (see below), whose sum is σ = 235680032700. Its totient is φ = 60704787968.

The previous prime is 121525441501. The next prime is 121525441559. The reversal of 121525441552 is 255144525121.

It can be written as a sum of positive squares in 2 ways, for example, as 93675172096 + 27850269456 = 306064^2 + 166884^2 .

It is not an unprimeable number, because it can be changed into a prime (121525441559) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3603493 + ... + 3637060.

It is an arithmetic number, because the mean of its divisors is an integer number (11784001635).

Almost surely, 2^121525441552 is an apocalyptic number.

It is an amenable number.

121525441552 is a deficient number, since it is larger than the sum of its proper divisors (114154591148).

121525441552 is a wasteful number, since it uses less digits than its factorization.

121525441552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7241610 (or 7241604 counting only the distinct ones).

The product of its digits is 80000, while the sum is 37.

Adding to 121525441552 its reverse (255144525121), we get a palindrome (376669966673).

The spelling of 121525441552 in words is "one hundred twenty-one billion, five hundred twenty-five million, four hundred forty-one thousand, five hundred fifty-two".