1111222211000 has 128 divisors (see below), whose sum is σ = 2902617020160. Its totient is φ = 394683408000.

The previous prime is 1111222210999. The next prime is 1111222211053. The reversal of 1111222211000 is 1122221111.

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 701654 + ... + 1647653.

It is an arithmetic number, because the mean of its divisors is an integer number (22676695470).

Almost surely, 2^{1111222211000} is an apocalyptic number.

1111222211000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111222211000 is an abundant number, since it is smaller than the sum of its proper divisors (1791394809160).

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

1111222211000 is a wasteful number, since it uses less digits than its factorization.

1111222211000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2349382 (or 2349368 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1111222211000 its reverse (1122221111), we get a palindrome (1112344432111).

The spelling of 1111222211000 in words is "one trillion, one hundred eleven billion, two hundred twenty-two million, two hundred eleven thousand".