121251106 has 48 divisors (see below), whose sum is σ = 204417792. Its totient is φ = 53856000.

The previous prime is 121251083. The next prime is 121251127. The reversal of 121251106 is 601152121.

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, 1200456 + ... + 1200556.

It is an arithmetic number, because the mean of its divisors is an integer number (4258704).

Almost surely, 2^121251106 is an apocalyptic number.

121251106 is a deficient number, since it is larger than the sum of its proper divisors (83166686).

121251106 is a wasteful number, since it uses less digits than its factorization.

121251106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235 (or 218 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 121251106 is about 11011.4079935311. The cubic root of 121251106 is about 494.9506545375.

It can be divided in two parts, 12125 and 1106, that added together give a palindrome (13231).

The spelling of 121251106 in words is "one hundred twenty-one million, two hundred fifty-one thousand, one hundred six".