10212012221021 has 8 divisors (see below), whose sum is σ = 11376777541080. Its totient is φ = 9101422032192.

The previous prime is 10212012221011. The next prime is 10212012221107. The reversal of 10212012221021 is 12012221021201.

10212012221021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 30743764921 + 10181268456100 = 175339^2 + 3190810^2 .

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 10212012221021 - 2¹⁴ = 10212012204637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10212012221011) 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, 13543782410 + ... + 13543783163.

It is an arithmetic number, because the mean of its divisors is an integer number (1422097192635).

Almost surely, 2^{10212012221021} is an apocalyptic number.

It is an amenable number.

10212012221021 is a deficient number, since it is larger than the sum of its proper divisors (1164765320059).

10212012221021 is a wasteful number, since it uses less digits than its factorization.

10212012221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27087565615.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 10212012221021 its reverse (12012221021201), we get a palindrome (22224233242222).

The spelling of 10212012221021 in words is "ten trillion, two hundred twelve billion, twelve million, two hundred twenty-one thousand, twenty-one".