11221012000 has 96 divisors (see below), whose sum is σ = 30076510464. Its totient is φ = 4080352000.

The previous prime is 11221011973. The next prime is 11221012003. The reversal of 11221012000 is 21012211.

It is a super-2 number, since 2×11221012000² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (11221012003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83512 + ... + 171511.

It is an arithmetic number, because the mean of its divisors is an integer number (313296984).

Almost surely, 2^11221012000 is an apocalyptic number.

11221012000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11221012000 is an abundant number, since it is smaller than the sum of its proper divisors (18855498464).

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

11221012000 is a wasteful number, since it uses less digits than its factorization.

11221012000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255059 (or 255041 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 11221012000 its reverse (21012211), we get a palindrome (11242024211).

The spelling of 11221012000 in words is "eleven billion, two hundred twenty-one million, twelve thousand".