121300066 has 32 divisors (see below), whose sum is σ = 204120000. Its totient is φ = 53724672.

The previous prime is 121300061. The next prime is 121300073. The reversal of 121300066 is 660003121.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (121300061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115110 + ... + 116158.

It is an arithmetic number, because the mean of its divisors is an integer number (6378750).

Almost surely, 2^121300066 is an apocalyptic number.

121300066 is a deficient number, since it is larger than the sum of its proper divisors (82819934).

121300066 is a wasteful number, since it uses less digits than its factorization.

121300066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1266.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 121300066 is about 11013.6309180942. The cubic root of 121300066 is about 495.0172643028.

Adding to 121300066 its reverse (660003121), we get a palindrome (781303187).

It can be divided in two parts, 12 and 1300066, that added together give a triangular number (1300078 = T₁₆₁₂).

The spelling of 121300066 in words is "one hundred twenty-one million, three hundred thousand, sixty-six".