2221000111020 has 96 divisors (see below), whose sum is σ = 6244922396160. Its totient is φ = 589779904000.

The previous prime is 2221000111019. The next prime is 2221000111027. The reversal of 2221000111020 is 201110001222.

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

It is a junction number, because it is equal to n+sod(n) for n = 2221000110987 and 2221000111005.

It is not an unprimeable number, because it can be changed into a prime (2221000111027) 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, 84910264 + ... + 84936416.

It is an arithmetic number, because the mean of its divisors is an integer number (65051274960).

Almost surely, 2^{2221000111020} is an apocalyptic number.

2221000111020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221000111020 is an abundant number, since it is smaller than the sum of its proper divisors (4023922285140).

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

2221000111020 is a wasteful number, since it uses less digits than its factorization.

2221000111020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32055 (or 32053 counting only the distinct ones).

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

Adding to 2221000111020 its reverse (201110001222), we get a palindrome (2422110112242).

The spelling of 2221000111020 in words is "two trillion, two hundred twenty-one billion, one hundred eleven thousand, twenty".