11121211222000 has 160 divisors (see below), whose sum is σ = 29889240698304. Its totient is φ = 3967773056000.

The previous prime is 11121211221997. The next prime is 11121211222003. The reversal of 11121211222000 is 22211212111.

It is an interprime number because it is at equal distance from previous prime (11121211221997) and next prime (11121211222003).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121211222003) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 3602959 + ... + 5934958.

Almost surely, 2^{11121211222000} is an apocalyptic number.

11121211222000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11121211222000 is an abundant number, since it is smaller than the sum of its proper divisors (18768029476304).

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

11121211222000 is a wasteful number, since it uses less digits than its factorization.

11121211222000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9538004 (or 9537988 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11121211222000 its reverse (22211212111), we get a palindrome (11143422434111).

The spelling of 11121211222000 in words is "eleven trillion, one hundred twenty-one billion, two hundred eleven million, two hundred twenty-two thousand".