12201022001 has 12 divisors (see below), whose sum is σ = 14325676848. Its totient is φ = 10360275912.

The previous prime is 12201021983. The next prime is 12201022003. The reversal of 12201022001 is 10022010221.

It is a happy number.

It is not a de Polignac number, because 12201022001 - 2²² = 12196827697 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12201022003) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1158311 + ... + 1168796.

It is an arithmetic number, because the mean of its divisors is an integer number (1193806404).

Almost surely, 2^12201022001 is an apocalyptic number.

It is an amenable number.

12201022001 is a deficient number, since it is larger than the sum of its proper divisors (2124654847).

12201022001 is a wasteful number, since it uses less digits than its factorization.

12201022001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2327228 (or 2327221 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 12201022001 its reverse (10022010221), we get a palindrome (22223032222).

The spelling of 12201022001 in words is "twelve billion, two hundred one million, twenty-two thousand, one".