11122212000 has 96 divisors (see below), whose sum is σ = 36436405824. Its totient is φ = 2965920000.

The previous prime is 11122211993. The next prime is 11122212043. The reversal of 11122212000 is 21222111.

It is a tau number, because it is divible by the number of its divisors (96).

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

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, 451426 + ... + 475425.

It is an arithmetic number, because the mean of its divisors is an integer number (379545894).

Almost surely, 2^11122212000 is an apocalyptic number.

11122212000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11122212000 is an abundant number, since it is smaller than the sum of its proper divisors (25314193824).

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

11122212000 is an equidigital number, since it uses as much as digits as its factorization.

11122212000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 926879 (or 926861 counting only the distinct ones).

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

Adding to 11122212000 its reverse (21222111), we get a palindrome (11143434111).

The spelling of 11122212000 in words is "eleven billion, one hundred twenty-two million, two hundred twelve thousand".