12120121013210 has 32 divisors (see below), whose sum is σ = 24933130179840. Its totient is φ = 4155418426752.

The previous prime is 12120121013207. The next prime is 12120121013213. The reversal of 12120121013210 is 1231012102121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12120121013207) and next prime (12120121013213).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12120121013213) 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, 4827731 + ... + 6895449.

It is an arithmetic number, because the mean of its divisors is an integer number (779160318120).

Almost surely, 2^{12120121013210} is an apocalyptic number.

12120121013210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12120121013210 is an abundant number, since it is smaller than the sum of its proper divisors (12813009166630).

12120121013210 is a wasteful number, since it uses less digits than its factorization.

12120121013210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2151470.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 12120121013210 its reverse (1231012102121), we get a palindrome (13351133115331).

It can be divided in two parts, 1212012 and 1013210, that added together give a palindrome (2225222).

The spelling of 12120121013210 in words is "twelve trillion, one hundred twenty billion, one hundred twenty-one million, thirteen thousand, two hundred ten".