1111110022221 has 8 divisors (see below), whose sum is σ = 1492293753024. Its totient is φ = 735333153120.

The previous prime is 1111110022193. The next prime is 1111110022247. The reversal of 1111110022221 is 1222200111111.

It is a happy number.

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

It is not a de Polignac number, because 1111110022221 - 2¹⁷ = 1111109891149 is a prime.

It is a super-2 number, since 2×1111110022221² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1111110022221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111110042221) 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, 1351714945 + ... + 1351715766.

It is an arithmetic number, because the mean of its divisors is an integer number (186536719128).

Almost surely, 2^{1111110022221} is an apocalyptic number.

It is an amenable number.

1111110022221 is a deficient number, since it is larger than the sum of its proper divisors (381183730803).

1111110022221 is a wasteful number, since it uses less digits than its factorization.

1111110022221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2703430851.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1111110022221 its reverse (1222200111111), we get a palindrome (2333310133332).

The spelling of 1111110022221 in words is "one trillion, one hundred eleven billion, one hundred ten million, twenty-two thousand, two hundred twenty-one".