12200021211 has 32 divisors (see below), whose sum is σ = 19128905728. Its totient is φ = 6770252160.

The previous prime is 12200021209. The next prime is 12200021231. The reversal of 12200021211 is 11212000221.

It is not a de Polignac number, because 12200021211 - 2¹ = 12200021209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12200021231) 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, 405846 + ... + 434868.

It is an arithmetic number, because the mean of its divisors is an integer number (597778304).

Almost surely, 2^12200021211 is an apocalyptic number.

12200021211 is a deficient number, since it is larger than the sum of its proper divisors (6928884517).

12200021211 is a wasteful number, since it uses less digits than its factorization.

12200021211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29611.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12200021211 its reverse (11212000221), we get a palindrome (23412021432).

The spelling of 12200021211 in words is "twelve billion, two hundred million, twenty-one thousand, two hundred eleven".