12021022201 has 32 divisors (see below), whose sum is σ = 13813372800. Its totient is φ = 10391224320.

The previous prime is 12021022127. The next prime is 12021022207. The reversal of 12021022201 is 10222012021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12021022201 - 2⁷ = 12021022073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12021022207) 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, 1386841 + ... + 1395481.

It is an arithmetic number, because the mean of its divisors is an integer number (431667900).

Almost surely, 2^12021022201 is an apocalyptic number.

It is an amenable number.

12021022201 is a deficient number, since it is larger than the sum of its proper divisors (1792350599).

12021022201 is a wasteful number, since it uses less digits than its factorization.

12021022201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8809.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 12021022201 its reverse (10222012021), we get a palindrome (22243034222).

The spelling of 12021022201 in words is "twelve billion, twenty-one million, twenty-two thousand, two hundred one".