121129626 has 16 divisors (see below), whose sum is σ = 242643744. Its totient is φ = 40312464.

The previous prime is 121129553. The next prime is 121129627. The reversal of 121129626 is 626921121.

It is a junction number, because it is equal to n+sod(n) for n = 121129593 and 121129602.

It is not an unprimeable number, because it can be changed into a prime (121129627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11841 + ... + 19556.

It is an arithmetic number, because the mean of its divisors is an integer number (15165234).

Almost surely, 2^121129626 is an apocalyptic number.

121129626 is an abundant number, since it is smaller than the sum of its proper divisors (121514118).

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

121129626 is a wasteful number, since it uses less digits than its factorization.

121129626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32045.

The product of its digits is 2592, while the sum is 30.

The square root of 121129626 is about 11005.8905137204. The cubic root of 121129626 is about 494.7853043022.

The spelling of 121129626 in words is "one hundred twenty-one million, one hundred twenty-nine thousand, six hundred twenty-six".