12210300021 has 8 divisors (see below), whose sum is σ = 16286650560. Its totient is φ = 8137074752.

The previous prime is 12210299989. The next prime is 12210300059. The reversal of 12210300021 is 12000301221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12210300021 - 2⁵ = 12210299989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210300071) 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 7 ways as a sum of consecutive naturals, for example, 772185 + ... + 787838.

It is an arithmetic number, because the mean of its divisors is an integer number (2035831320).

Almost surely, 2^12210300021 is an apocalyptic number.

It is an amenable number.

12210300021 is a deficient number, since it is larger than the sum of its proper divisors (4076350539).

12210300021 is a wasteful number, since it uses less digits than its factorization.

12210300021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1562635.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 12210300021 its reverse (12000301221), we get a palindrome (24210601242).

The spelling of 12210300021 in words is "twelve billion, two hundred ten million, three hundred thousand, twenty-one".