121772230 has 8 divisors (see below), whose sum is σ = 219190032. Its totient is φ = 48708888.

The previous prime is 121772227. The next prime is 121772237. The reversal of 121772230 is 32277121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 121772195 and 121772204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121772237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6088602 + ... + 6088621.

It is an arithmetic number, because the mean of its divisors is an integer number (27398754).

Almost surely, 2^121772230 is an apocalyptic number.

121772230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121772230 is a deficient number, since it is larger than the sum of its proper divisors (97417802).

121772230 is a wasteful number, since it uses less digits than its factorization.

121772230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12177230.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 121772230 is about 11035.0455368340. The cubic root of 121772230 is about 495.6587223755.

The spelling of 121772230 in words is "one hundred twenty-one million, seven hundred seventy-two thousand, two hundred thirty".