2221011101020 has 48 divisors (see below), whose sum is σ = 4712538630240. Its totient is φ = 879183765504.

The previous prime is 2221011101009. The next prime is 2221011101051. The reversal of 2221011101020 is 201011101222.

It is a congruent number.

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, 35717316 + ... + 35779444.

It is an arithmetic number, because the mean of its divisors is an integer number (98177888130).

Almost surely, 2^{2221011101020} is an apocalyptic number.

2221011101020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221011101020 is an abundant number, since it is smaller than the sum of its proper divisors (2491527529220).

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

2221011101020 is a wasteful number, since it uses less digits than its factorization.

2221011101020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80662 (or 80660 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2221011101020 its reverse (201011101222), we get a palindrome (2422022202242).

The spelling of 2221011101020 in words is "two trillion, two hundred twenty-one billion, eleven million, one hundred one thousand, twenty".