12120012101210 has 16 divisors (see below), whose sum is σ = 23494177304136. Its totient is φ = 4475081391168.

The previous prime is 12120012101173. The next prime is 12120012101233. The reversal of 12120012101210 is 1210121002121.

It can be written as a sum of positive squares in 4 ways, for example, as 10456110755281 + 1663901345929 = 3233591^2 + 1289923^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46615431029 + ... + 46615431288.

Almost surely, 2^{12120012101210} is an apocalyptic number.

12120012101210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12120012101210 is a deficient number, since it is larger than the sum of its proper divisors (11374165202926).

12120012101210 is a wasteful number, since it uses less digits than its factorization.

12120012101210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93230862337.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12120012101210 its reverse (1210121002121), we get a palindrome (13330133103331).

The spelling of 12120012101210 in words is "twelve trillion, one hundred twenty billion, twelve million, one hundred one thousand, two hundred ten".