10214245365221 has 4 divisors (see below), whose sum is σ = 10214312587212. Its totient is φ = 10214178143232.

The previous prime is 10214245365211. The next prime is 10214245365257. The reversal of 10214245365221 is 12256354241201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4014469060996 + 6199776304225 = 2003614^2 + 2489935^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10214245365221 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 (10214245365211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33382556 + ... + 33687141.

It is an arithmetic number, because the mean of its divisors is an integer number (2553578146803).

Almost surely, 2^{10214245365221} is an apocalyptic number.

It is an amenable number.

10214245365221 is a deficient number, since it is larger than the sum of its proper divisors (67221991).

10214245365221 is an equidigital number, since it uses as much as digits as its factorization.

10214245365221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67221990.

The product of its (nonzero) digits is 115200, while the sum is 38.

The spelling of 10214245365221 in words is "ten trillion, two hundred fourteen billion, two hundred forty-five million, three hundred sixty-five thousand, two hundred twenty-one".