12021300001 has 4 divisors (see below), whose sum is σ = 12409083904. Its totient is φ = 11633516100.

The previous prime is 12021299977. The next prime is 12021300013. The reversal of 12021300001 is 10000312021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12021300001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12021300701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 193891905 + ... + 193891966.

It is an arithmetic number, because the mean of its divisors is an integer number (3102270976).

Almost surely, 2^12021300001 is an apocalyptic number.

It is an amenable number.

12021300001 is a deficient number, since it is larger than the sum of its proper divisors (387783903).

12021300001 is an equidigital number, since it uses as much as digits as its factorization.

12021300001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387783902.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 12021300001 its reverse (10000312021), we get a palindrome (22021612022).

The spelling of 12021300001 in words is "twelve billion, twenty-one million, three hundred thousand, one".