12001220211010 has 24 divisors (see below), whose sum is σ = 22372786040436. Its totient is φ = 4634954009280.

The previous prime is 12001220210977. The next prime is 12001220211061. The reversal of 12001220211010 is 1011202210021.

It can be written as a sum of positive squares in 6 ways, for example, as 6938814710569 + 5062405500441 = 2634163^2 + 2249979^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 713500521 + ... + 713517340.

Almost surely, 2^{12001220211010} is an apocalyptic number.

12001220211010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12001220211010 is a deficient number, since it is larger than the sum of its proper divisors (10371565829426).

12001220211010 is a wasteful number, since it uses less digits than its factorization.

12001220211010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427017926 (or 1427017897 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12001220211010 its reverse (1011202210021), we get a palindrome (13012422421031).

The spelling of 12001220211010 in words is "twelve trillion, one billion, two hundred twenty million, two hundred eleven thousand, ten".