121213143210 has 32 divisors (see below), whose sum is σ = 290920714560. Its totient is φ = 32322485888.

The previous prime is 121213143187. The next prime is 121213143221. The reversal of 121213143210 is 12341312121.

121213143210 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1758781 + ... + 1826399.

It is an arithmetic number, because the mean of its divisors is an integer number (9091272330).

Almost surely, 2^121213143210 is an apocalyptic number.

121213143210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121213143210 is an abundant number, since it is smaller than the sum of its proper divisors (169707571350).

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

121213143210 is a wasteful number, since it uses less digits than its factorization.

121213143210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127382.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 121213143210 its reverse (12341312121), we get a palindrome (133554455331).

The spelling of 121213143210 in words is "one hundred twenty-one billion, two hundred thirteen million, one hundred forty-three thousand, two hundred ten".