221022020221110 has 96 divisors (see below), whose sum is σ = 598139900047872. Its totient is φ = 58721717374560.

The previous prime is 221022020221103. The next prime is 221022020221127. The reversal of 221022020221110 is 11122020220122.

It is a happy number.

221022020221110 is a `hidden beast` number, since 2 + 21 + 0 + 220 + 202 + 211 + 10 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 167156164 + ... + 168473223.

It is an arithmetic number, because the mean of its divisors is an integer number (6230623958832).

Almost surely, 2^{221022020221110} is an apocalyptic number.

221022020221110 is an abundant number, since it is smaller than the sum of its proper divisors (377117879826762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

221022020221110 is a wasteful number, since it uses less digits than its factorization.

221022020221110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335629680 (or 335629668 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 221022020221110 its reverse (11122020220122), we get a palindrome (232144040441232).

The spelling of 221022020221110 in words is "two hundred twenty-one trillion, twenty-two billion, twenty million, two hundred twenty-one thousand, one hundred ten".