12210012011021 has 8 divisors (see below), whose sum is σ = 13545776037600. Its totient is φ = 10911875140240.

The previous prime is 12210012011003. The next prime is 12210012011023. The reversal of 12210012011021 is 12011021001221.

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 12210012011021 - 2¹⁰ = 12210012009997 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12210012010987 and 12210012011005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12210012011023) 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, 9406788266 + ... + 9406789563.

It is an arithmetic number, because the mean of its divisors is an integer number (1693222004700).

Almost surely, 2^{12210012011021} is an apocalyptic number.

12210012011021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12210012011021 is a deficient number, since it is larger than the sum of its proper divisors (1335764026579).

12210012011021 is a wasteful number, since it uses less digits than its factorization.

12210012011021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18813577899.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12210012011021 its reverse (12011021001221), we get a palindrome (24221033012242).

It can be divided in two parts, 122100 and 12011021, that added together give a palindrome (12133121).

The spelling of 12210012011021 in words is "twelve trillion, two hundred ten billion, twelve million, eleven thousand, twenty-one".