12210010020021 has 8 divisors (see below), whose sum is σ = 17760014574624. Its totient is φ = 7400006072720.

The previous prime is 12210010019969. The next prime is 12210010020037. The reversal of 12210010020021 is 12002001001221.

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 12210010020021 - 2⁹ = 12210010019509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12210010019979 and 12210010020006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210010021021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185000151786 + ... + 185000151851.

It is an arithmetic number, because the mean of its divisors is an integer number (2220001821828).

Almost surely, 2^{12210010020021} is an apocalyptic number.

12210010020021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12210010020021 is a deficient number, since it is larger than the sum of its proper divisors (5550004554603).

12210010020021 is a wasteful number, since it uses less digits than its factorization.

12210010020021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370000303651.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12210010020021 its reverse (12002001001221), we get a palindrome (24212011021242).

The spelling of 12210010020021 in words is "twelve trillion, two hundred ten billion, ten million, twenty thousand, twenty-one".