12011222201 has 16 divisors (see below), whose sum is σ = 13286353920. Its totient is φ = 10767444480.

The previous prime is 12011222137. The next prime is 12011222221. The reversal of 12011222201 is 10222211021.

It is a cyclic number.

It is not a de Polignac number, because 12011222201 - 2⁶ = 12011222137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12011222221) 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, 275240 + ... + 315878.

It is an arithmetic number, because the mean of its divisors is an integer number (830397120).

Almost surely, 2^12011222201 is an apocalyptic number.

12011222201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12011222201 is a deficient number, since it is larger than the sum of its proper divisors (1275131719).

12011222201 is a wasteful number, since it uses less digits than its factorization.

12011222201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41024.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12011222201 its reverse (10222211021), we get a palindrome (22233433222).

The spelling of 12011222201 in words is "twelve billion, eleven million, two hundred twenty-two thousand, two hundred one".