1111222206 has 32 divisors (see below), whose sum is σ = 2503218720. Its totient is φ = 365332032.

The previous prime is 1111222199. The next prime is 1111222213. The reversal of 1111222206 is 6022221111.

It is an interprime number because it is at equal distance from previous prime (1111222199) and next prime (1111222213).

It is a super-2 number, since 2×1111222206² = 2469629582215012872, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 137005 + ... + 144888.

It is an arithmetic number, because the mean of its divisors is an integer number (78225585).

Almost surely, 2^1111222206 is an apocalyptic number.

1111222206 is an abundant number, since it is smaller than the sum of its proper divisors (1391996514).

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

1111222206 is a wasteful number, since it uses less digits than its factorization.

1111222206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281977 (or 281971 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 1111222206 is about 33334.9997150142. Note that the first 3 decimals coincide. The cubic root of 1111222206 is about 1035.7786872659.

Adding to 1111222206 its reverse (6022221111), we get a palindrome (7133443317).

The spelling of 1111222206 in words is "one billion, one hundred eleven million, two hundred twenty-two thousand, two hundred six".