121660330 has 96 divisors (see below), whose sum is σ = 262595520. Its totient is φ = 40212480.

The previous prime is 121660223. The next prime is 121660349. The reversal of 121660330 is 33066121.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1366926 + ... + 1367014.

It is an arithmetic number, because the mean of its divisors is an integer number (2735370).

Almost surely, 2^121660330 is an apocalyptic number.

121660330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121660330 is an abundant number, since it is smaller than the sum of its proper divisors (140935190).

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

121660330 is a wasteful number, since it uses less digits than its factorization.

121660330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184 (or 167 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 121660330 is about 11029.9741613478. The cubic root of 121660330 is about 495.5068508337.

The spelling of 121660330 in words is "one hundred twenty-one million, six hundred sixty thousand, three hundred thirty".