2221101210020 has 48 divisors (see below), whose sum is σ = 5815246808448. Its totient is φ = 692291285760.

The previous prime is 2221101210017. The next prime is 2221101210037. The reversal of 2221101210020 is 200121011222.

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

It is a junction number, because it is equal to n+sod(n) for n = 2221101209977 and 2221101210004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 721135217 + ... + 721138296.

It is an arithmetic number, because the mean of its divisors is an integer number (121150975176).

Almost surely, 2^{2221101210020} is an apocalyptic number.

2221101210020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221101210020 is an abundant number, since it is smaller than the sum of its proper divisors (3594145598428).

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

2221101210020 is a wasteful number, since it uses less digits than its factorization.

2221101210020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1442273540 (or 1442273538 counting only the distinct ones).

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

Adding to 2221101210020 its reverse (200121011222), we get a palindrome (2421222221242).

The spelling of 2221101210020 in words is "two trillion, two hundred twenty-one billion, one hundred one million, two hundred ten thousand, twenty".