10012100221221 has 16 divisors (see below), whose sum is σ = 15515118988800. Its totient is φ = 5624230632048.

The previous prime is 10012100221219. The next prime is 10012100221241. The reversal of 10012100221221 is 12212200121001.

It is not a de Polignac number, because 10012100221221 - 2¹ = 10012100221219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10012100221221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10012100221241) 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 15 ways as a sum of consecutive naturals, for example, 4040394331 + ... + 4040396808.

It is an arithmetic number, because the mean of its divisors is an integer number (969694936800).

Almost surely, 2^{10012100221221} is an apocalyptic number.

It is an amenable number.

10012100221221 is a deficient number, since it is larger than the sum of its proper divisors (5503018767579).

10012100221221 is an equidigital number, since it uses as much as digits as its factorization.

10012100221221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8080791208.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 10012100221221 its reverse (12212200121001), we get a palindrome (22224300342222).

The spelling of 10012100221221 in words is "ten trillion, twelve billion, one hundred million, two hundred twenty-one thousand, two hundred twenty-one".