10210212120221 has 16 divisors (see below), whose sum is σ = 10391543642688. Its totient is φ = 10029339129600.

The previous prime is 10210212120209. The next prime is 10210212120397. The reversal of 10210212120221 is 12202121201201.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10210212120221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10210212120221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10210212125221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151145765 + ... + 151213301.

It is an arithmetic number, because the mean of its divisors is an integer number (649471477668).

Almost surely, 2^{10210212120221} is an apocalyptic number.

It is an amenable number.

10210212120221 is a deficient number, since it is larger than the sum of its proper divisors (181331522467).

10210212120221 is a wasteful number, since it uses less digits than its factorization.

10210212120221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70892.

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

Adding to 10210212120221 its reverse (12202121201201), we get a palindrome (22412333321422).

The spelling of 10210212120221 in words is "ten trillion, two hundred ten billion, two hundred twelve million, one hundred twenty thousand, two hundred twenty-one".