801220002221111 has 16 divisors (see below), whose sum is σ = 904208384361600. Its totient is φ = 703257223586400.

The previous prime is 801220002221087. The next prime is 801220002221137. The reversal of 801220002221111 is 111122200022108.

801220002221111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 801220002221111 - 2⁶ = 801220002221047 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 (801220002221161) 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, 13983296 + ... + 42402506.

It is an arithmetic number, because the mean of its divisors is an integer number (56513024022600).

Almost surely, 2^{801220002221111} is an apocalyptic number.

801220002221111 is a deficient number, since it is larger than the sum of its proper divisors (102988382140489).

801220002221111 is a wasteful number, since it uses less digits than its factorization.

801220002221111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28507630.

The product of its (nonzero) digits is 256, while the sum is 23.

Adding to 801220002221111 its reverse (111122200022108), we get a palindrome (912342202243219).

The spelling of 801220002221111 in words is "eight hundred one trillion, two hundred twenty billion, two million, two hundred twenty-one thousand, one hundred eleven".