11221200221000 has 128 divisors (see below), whose sum is σ = 32736758895360. Its totient is φ = 3497516928000.

The previous prime is 11221200220981. The next prime is 11221200221003. The reversal of 11221200221000 is 12200212211.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (11221200221003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 72787937 + ... + 72941936.

It is an arithmetic number, because the mean of its divisors is an integer number (255755928870).

Almost surely, 2^{11221200221000} is an apocalyptic number.

11221200221000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11221200221000 is an abundant number, since it is smaller than the sum of its proper divisors (21515558674360).

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

11221200221000 is a wasteful number, since it uses less digits than its factorization.

11221200221000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145729912 (or 145729898 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 11221200221000 its reverse (12200212211), we get a palindrome (11233400433211).

The spelling of 11221200221000 in words is "eleven trillion, two hundred twenty-one billion, two hundred million, two hundred twenty-one thousand".