221110220221022 has 16 divisors (see below), whose sum is σ = 361817048215152. Its totient is φ = 100504555494720.

The previous prime is 221110220220991. The next prime is 221110220221039. The reversal of 221110220221022 is 220122022011122.

It is a super-2 number, since 2×221110220221022² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221110220220985 and 221110220221003.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 24861668 + ... + 32562600.

It is an arithmetic number, because the mean of its divisors is an integer number (22613565513447).

Almost surely, 2^{221110220221022} is an apocalyptic number.

221110220221022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

221110220221022 is a deficient number, since it is larger than the sum of its proper divisors (140706827994130).

221110220221022 is a wasteful number, since it uses less digits than its factorization.

221110220221022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9006043.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 221110220221022 its reverse (220122022011122), we get a palindrome (441232242232144).

The spelling of 221110220221022 in words is "two hundred twenty-one trillion, one hundred ten billion, two hundred twenty million, two hundred twenty-one thousand, twenty-two".