221001001101022 has 16 divisors (see below), whose sum is σ = 331861040344512. Its totient is φ = 110380713582240.

The previous prime is 221001001100953. The next prime is 221001001101077. The reversal of 221001001101022 is 220101100100122.

It is a junction number, because it is equal to n+sod(n) for n = 221001001100993 and 221001001101011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7354293 + ... + 22273024.

It is an arithmetic number, because the mean of its divisors is an integer number (20741315021532).

Almost surely, 2^{221001001101022} is an apocalyptic number.

221001001101022 is a deficient number, since it is larger than the sum of its proper divisors (110860039243490).

221001001101022 is a wasteful number, since it uses less digits than its factorization.

221001001101022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29631363.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 221001001101022 its reverse (220101100100122), we get a palindrome (441102101201144).

The spelling of 221001001101022 in words is "two hundred twenty-one trillion, one billion, one million, one hundred one thousand, twenty-two".