111010223221 has 16 divisors (see below), whose sum is σ = 115944330240. Its totient is φ = 106210540800.

The previous prime is 111010223183. The next prime is 111010223239. The reversal of 111010223221 is 122322010111.

It is a cyclic number.

It is not a de Polignac number, because 111010223221 - 2²⁹ = 110473352309 is a prime.

It is a super-2 number, since 2×111010223221² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111010223195 and 111010223204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111010223321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 227005 + ... + 523021.

It is an arithmetic number, because the mean of its divisors is an integer number (7246520640).

Almost surely, 2^111010223221 is an apocalyptic number.

It is an amenable number.

111010223221 is a deficient number, since it is larger than the sum of its proper divisors (4934107019).

111010223221 is a wasteful number, since it uses less digits than its factorization.

111010223221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296244.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 111010223221 its reverse (122322010111), we get a palindrome (233332233332).

The spelling of 111010223221 in words is "one hundred eleven billion, ten million, two hundred twenty-three thousand, two hundred twenty-one".