121134220 has 12 divisors (see below), whose sum is σ = 254381904. Its totient is φ = 48453680.

The previous prime is 121134217. The next prime is 121134241. The reversal of 121134220 is 22431121.

It is a junction number, because it is equal to n+sod(n) for n = 121134194 and 121134203.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 3028336 + ... + 3028375.

It is an arithmetic number, because the mean of its divisors is an integer number (21198492).

Almost surely, 2^121134220 is an apocalyptic number.

121134220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121134220 is an abundant number, since it is smaller than the sum of its proper divisors (133247684).

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

121134220 is a wasteful number, since it uses less digits than its factorization.

121134220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6056720 (or 6056718 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 121134220 is about 11006.0992181608. The cubic root of 121134220 is about 494.7915593504.

Adding to 121134220 its reverse (22431121), we get a palindrome (143565341).

The spelling of 121134220 in words is "one hundred twenty-one million, one hundred thirty-four thousand, two hundred twenty".