121213130 has 32 divisors (see below), whose sum is σ = 225548928. Its totient is φ = 46872000.

The previous prime is 121213129. The next prime is 121213163. The reversal of 121213130 is 31312121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42035 + ... + 44825.

It is an arithmetic number, because the mean of its divisors is an integer number (7048404).

Almost surely, 2^121213130 is an apocalyptic number.

121213130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121213130 is a deficient number, since it is larger than the sum of its proper divisors (104335798).

121213130 is a wasteful number, since it uses less digits than its factorization.

121213130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2942.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 121213130 is about 11009.6834650230. The cubic root of 121213130 is about 494.8989760846.

Adding to 121213130 its reverse (31312121), we get a palindrome (152525251).

It can be divided in two parts, 12121 and 3130, that added together give a palindrome (15251).

The spelling of 121213130 in words is "one hundred twenty-one million, two hundred thirteen thousand, one hundred thirty".