12021111201 has 32 divisors (see below), whose sum is σ = 17594873856. Its totient is φ = 7239960000.

The previous prime is 12021111191. The next prime is 12021111209. The reversal of 12021111201 is 10211112021.

It is not a de Polignac number, because 12021111201 - 2⁷ = 12021111073 is a prime.

It is a super-2 number, since 2×12021111201² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12021111209) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9058200 + ... + 9059526.

It is an arithmetic number, because the mean of its divisors is an integer number (549839808).

Almost surely, 2^12021111201 is an apocalyptic number.

12021111201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12021111201 is a deficient number, since it is larger than the sum of its proper divisors (5573762655).

12021111201 is a wasteful number, since it uses less digits than its factorization.

12021111201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2853.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12021111201 its reverse (10211112021), we get a palindrome (22232223222).

It can be divided in two parts, 1 and 2021111201, that added together give a palindrome (2021111202).

The spelling of 12021111201 in words is "twelve billion, twenty-one million, one hundred eleven thousand, two hundred one".