12120212101010 has 32 divisors (see below), whose sum is σ = 23727184476912. Its totient is φ = 4430846764800.

The previous prime is 12120212101001. The next prime is 12120212101087. The reversal of 12120212101010 is 1010121202121.

It can be written as a sum of positive squares in 8 ways, for example, as 8141212464961 + 3978999636049 = 2853281^2 + 1994743^2 .

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 461533409 + ... + 461559668.

Almost surely, 2^{12120212101010} is an apocalyptic number.

12120212101010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12120212101010 is a deficient number, since it is larger than the sum of its proper divisors (11606972375902).

12120212101010 is a wasteful number, since it uses less digits than its factorization.

12120212101010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923093198.

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

Adding to 12120212101010 its reverse (1010121202121), we get a palindrome (13130333303131).

The spelling of 12120212101010 in words is "twelve trillion, one hundred twenty billion, two hundred twelve million, one hundred one thousand, ten".