11041221000 has 64 divisors (see below), whose sum is σ = 34448618880. Its totient is φ = 2944324800.

The previous prime is 11041220987. The next prime is 11041221029. The reversal of 11041221000 is 12214011.

It is a happy number.

It is a super-2 number, since 2×11041221000² (a number of 21 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1837204 + ... + 1843203.

It is an arithmetic number, because the mean of its divisors is an integer number (538259670).

Almost surely, 2^11041221000 is an apocalyptic number.

11041221000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11041221000 is an abundant number, since it is smaller than the sum of its proper divisors (23407397880).

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

11041221000 is a wasteful number, since it uses less digits than its factorization.

11041221000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3680431 (or 3680417 counting only the distinct ones).

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

Adding to 11041221000 its reverse (12214011), we get a palindrome (11053435011).

The spelling of 11041221000 in words is "eleven billion, forty-one million, two hundred twenty-one thousand".