221022010111 has 8 divisors (see below), whose sum is σ = 252661266560. Its totient is φ = 189398924568.

The previous prime is 221022010103. The next prime is 221022010123. The reversal of 221022010111 is 111010220122.

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

It is not a de Polignac number, because 221022010111 - 2³ = 221022010103 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221022010091 and 221022010100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221022010211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4013421 + ... + 4068118.

It is an arithmetic number, because the mean of its divisors is an integer number (31582658320).

Almost surely, 2^221022010111 is an apocalyptic number.

221022010111 is a deficient number, since it is larger than the sum of its proper divisors (31639256449).

221022010111 is an equidigital number, since it uses as much as digits as its factorization.

221022010111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8085453.

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

Adding to 221022010111 its reverse (111010220122), we get a palindrome (332032230233).

The spelling of 221022010111 in words is "two hundred twenty-one billion, twenty-two million, ten thousand, one hundred eleven".