12210101001 has 32 divisors (see below), whose sum is σ = 21113057280. Its totient is φ = 6828744528.

The previous prime is 12210100993. The next prime is 12210101009. The reversal of 12210101001 is 10010101221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12210100993) and next prime (12210101009).

It is not a de Polignac number, because 12210101001 - 2³ = 12210100993 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 (12210101009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 678391 + ... + 696156.

It is an arithmetic number, because the mean of its divisors is an integer number (659783040).

Almost surely, 2^12210101001 is an apocalyptic number.

It is an amenable number.

12210101001 is a deficient number, since it is larger than the sum of its proper divisors (8902956279).

12210101001 is a wasteful number, since it uses less digits than its factorization.

12210101001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1374610 (or 1374604 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 12210101001 its reverse (10010101221), we get a palindrome (22220202222).

The spelling of 12210101001 in words is "twelve billion, two hundred ten million, one hundred one thousand, one".