121434220 has 12 divisors (see below), whose sum is σ = 255011904. Its totient is φ = 48573680.

The previous prime is 121434191. The next prime is 121434221. The reversal of 121434220 is 22434121.

It is not an unprimeable number, because it can be changed into a prime (121434221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3035836 + ... + 3035875.

It is an arithmetic number, because the mean of its divisors is an integer number (21250992).

Almost surely, 2^121434220 is an apocalyptic number.

121434220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121434220 is an abundant number, since it is smaller than the sum of its proper divisors (133577684).

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

121434220 is a wasteful number, since it uses less digits than its factorization.

121434220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6071720 (or 6071718 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 121434220 is about 11019.7195971585. The cubic root of 121434220 is about 495.1996881640.

Adding to 121434220 its reverse (22434121), we get a palindrome (143868341).

Subtracting from 121434220 its reverse (22434121), we obtain a palindrome (99000099).

The spelling of 121434220 in words is "one hundred twenty-one million, four hundred thirty-four thousand, two hundred twenty".