1122222211000 has 384 divisors, whose sum is σ = 2954415746880. Its totient is φ = 395596800000.

The previous prime is 1122222210971. The next prime is 1122222211021. The reversal of 1122222211000 is 1122222211.

It is a happy number.

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 8191402932 + ... + 8191403068.

Almost surely, 2^{1122222211000} is an apocalyptic number.

1122222211000 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 1122222211000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1477207873440).

1122222211000 is an abundant number, since it is smaller than the sum of its proper divisors (1832193535880).

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

1122222211000 is a wasteful number, since it uses less digits than its factorization.

1122222211000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444 (or 329 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1122222211000 its reverse (1122222211), we get a palindrome (1123344433211).

1122222211000 divided by its reverse (1122222211) gives a cube (1000 = 10³).

It can be divided in two parts, 11222 and 22211000, that added together give a palindrome (22222222).

The spelling of 1122222211000 in words is "one trillion, one hundred twenty-two billion, two hundred twenty-two million, two hundred eleven thousand".