121133420 has 12 divisors (see below), whose sum is σ = 254380224. Its totient is φ = 48453360.

The previous prime is 121133371. The next prime is 121133423. The reversal of 121133420 is 24331121.

It is not an unprimeable number, because it can be changed into a prime (121133423) 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, 3028316 + ... + 3028355.

It is an arithmetic number, because the mean of its divisors is an integer number (21198352).

Almost surely, 2^121133420 is an apocalyptic number.

121133420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121133420 is an abundant number, since it is smaller than the sum of its proper divisors (133246804).

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

121133420 is a wasteful number, since it uses less digits than its factorization.

121133420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6056680 (or 6056678 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 121133420 is about 11006.0628746160. The cubic root of 121133420 is about 494.7904701066.

Adding to 121133420 its reverse (24331121), we get a palindrome (145464541).

The spelling of 121133420 in words is "one hundred twenty-one million, one hundred thirty-three thousand, four hundred twenty".