11112222000 has 320 divisors, whose sum is σ = 39493329408. Its totient is φ = 2665600000.

The previous prime is 11112221993. The next prime is 11112222031. The reversal of 11112222000 is 22221111.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a zygodrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6665167 + ... + 6666833.

Almost surely, 2^11112222000 is an apocalyptic number.

11112222000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11112222000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19746664704).

11112222000 is an abundant number, since it is smaller than the sum of its proper divisors (28381107408).

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

11112222000 is a wasteful number, since it uses less digits than its factorization.

11112222000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1805 (or 1789 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 11112222000 its reverse (22221111), we get a palindrome (11134443111).

The spelling of 11112222000 in words is "eleven billion, one hundred twelve million, two hundred twenty-two thousand".