12001121121010 has 32 divisors (see below), whose sum is σ = 24688460282112. Its totient is φ = 4114596816960.

The previous prime is 12001121121001. The next prime is 12001121121013. The reversal of 12001121121010 is 1012112110021.

It is a happy number.

It is a super-2 number, since 2×12001121121010² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12001121121013) 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, 2507379 + ... + 5503561.

It is an arithmetic number, because the mean of its divisors is an integer number (771514383816).

Almost surely, 2^{12001121121010} is an apocalyptic number.

12001121121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12001121121010 is an abundant number, since it is smaller than the sum of its proper divisors (12687339161102).

12001121121010 is a wasteful number, since it uses less digits than its factorization.

12001121121010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3053418.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 12001121121010 its reverse (1012112110021), we get a palindrome (13013233231031).

The spelling of 12001121121010 in words is "twelve trillion, one billion, one hundred twenty-one million, one hundred twenty-one thousand, ten".