221110221022 has 8 divisors (see below), whose sum is σ = 331675104816. Its totient is φ = 110551852752.

The previous prime is 221110221019. The next prime is 221110221023. The reversal of 221110221022 is 220122011122.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 221110220987 and 221110221005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221110221023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1543138 + ... + 1680325.

It is an arithmetic number, because the mean of its divisors is an integer number (41459388102).

Almost surely, 2^221110221022 is an apocalyptic number.

221110221022 is a deficient number, since it is larger than the sum of its proper divisors (110564883794).

221110221022 is a wasteful number, since it uses less digits than its factorization.

221110221022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3257762.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 221110221022 its reverse (220122011122), we get a palindrome (441232232144).

The spelling of 221110221022 in words is "two hundred twenty-one billion, one hundred ten million, two hundred twenty-one thousand, twenty-two".