221101021001104 has 80 divisors (see below), whose sum is σ = 439444001462400. Its totient is φ = 107709302937600.

The previous prime is 221101021001017. The next prime is 221101021001153. The reversal of 221101021001104 is 401100120101122.

It is a super-2 number, since 2×221101021001104² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

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, 494723154 + ... + 495169870.

It is an arithmetic number, because the mean of its divisors is an integer number (5493050018280).

Almost surely, 2^{221101021001104} is an apocalyptic number.

It is an amenable number.

221101021001104 is a deficient number, since it is larger than the sum of its proper divisors (218342980461296).

221101021001104 is a wasteful number, since it uses less digits than its factorization.

221101021001104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448568 (or 448562 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 221101021001104 its reverse (401100120101122), we get a palindrome (622201141102226).

The spelling of 221101021001104 in words is "two hundred twenty-one trillion, one hundred one billion, twenty-one million, one thousand, one hundred four".