121225134 has 16 divisors (see below), whose sum is σ = 252991872. Its totient is φ = 38651448.

The previous prime is 121225121. The next prime is 121225171. The reversal of 121225134 is 431522121.

It is a super-2 number, since 2×121225134² = 29391066226635912, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121225134.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 439084 + ... + 439359.

It is an arithmetic number, because the mean of its divisors is an integer number (15811992).

Almost surely, 2^121225134 is an apocalyptic number.

121225134 is an abundant number, since it is smaller than the sum of its proper divisors (131766738).

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

121225134 is a wasteful number, since it uses less digits than its factorization.

121225134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878471.

The product of its digits is 480, while the sum is 21.

The square root of 121225134 is about 11010.2286079809. The cubic root of 121225134 is about 494.9153125194.

Adding to 121225134 its reverse (431522121), we get a palindrome (552747255).

The spelling of 121225134 in words is "one hundred twenty-one million, two hundred twenty-five thousand, one hundred thirty-four".