2221110221000 has 128 divisors (see below), whose sum is σ = 5670806319360. Its totient is φ = 807545728000.

The previous prime is 2221110220939. The next prime is 2221110221039. The reversal of 2221110221000 is 1220111222.

It is a super-2 number, since 2×2221110221000² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 90990797 + ... + 91015203.

It is an arithmetic number, because the mean of its divisors is an integer number (44303174370).

Almost surely, 2^{2221110221000} is an apocalyptic number.

2221110221000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2221110221000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2835403159680).

2221110221000 is an abundant number, since it is smaller than the sum of its proper divisors (3449696098360).

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

2221110221000 is a wasteful number, since it uses less digits than its factorization.

2221110221000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32712 (or 32698 counting only the distinct ones).

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

Adding to 2221110221000 its reverse (1220111222), we get a palindrome (2222330332222).

The spelling of 2221110221000 in words is "two trillion, two hundred twenty-one billion, one hundred ten million, two hundred twenty-one thousand".