121225311200516 has 24 divisors (see below), whose sum is σ = 212592232843200. Its totient is φ = 60484687677792.

The previous prime is 121225311200509. The next prime is 121225311200527. The reversal of 121225311200516 is 615002113522121.

It is a super-2 number, since 2×121225311200516² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31969535 + ... + 35559833.

It is an arithmetic number, because the mean of its divisors is an integer number (8858009701800).

Almost surely, 2^{121225311200516} is an apocalyptic number.

It is an amenable number.

121225311200516 is a deficient number, since it is larger than the sum of its proper divisors (91366921642684).

121225311200516 is a wasteful number, since it uses less digits than its factorization.

121225311200516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3608123 (or 3608121 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 32.

Adding to 121225311200516 its reverse (615002113522121), we get a palindrome (736227424722637).

The spelling of 121225311200516 in words is "one hundred twenty-one trillion, two hundred twenty-five billion, three hundred eleven million, two hundred thousand, five hundred sixteen".