12210002001 has 12 divisors (see below), whose sum is σ = 17677595520. Its totient is φ = 8121112440.

The previous prime is 12210001981. The next prime is 12210002011. The reversal of 12210002001 is 10020001221.

It is not a de Polignac number, because 12210002001 - 2¹¹ = 12209999953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (12210002011) 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, 1569981 + ... + 1577738.

It is an arithmetic number, because the mean of its divisors is an integer number (1473132960).

Almost surely, 2^12210002001 is an apocalyptic number.

It is an amenable number.

12210002001 is a deficient number, since it is larger than the sum of its proper divisors (5467593519).

12210002001 is a wasteful number, since it uses less digits than its factorization.

12210002001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3148156 (or 3148153 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 12210002001 its reverse (10020001221), we get a palindrome (22230003222).

The spelling of 12210002001 in words is "twelve billion, two hundred ten million, two thousand, one".