2221011212020 has 48 divisors (see below), whose sum is σ = 4747392534528. Its totient is φ = 872682249600.

The previous prime is 2221011212003. The next prime is 2221011212059. The reversal of 2221011212020 is 202121101222.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2221011211985 and 2221011212003.

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, 4072242 + ... + 4585321.

It is an arithmetic number, because the mean of its divisors is an integer number (98904011136).

Almost surely, 2^{2221011212020} is an apocalyptic number.

2221011212020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221011212020 is an abundant number, since it is smaller than the sum of its proper divisors (2526381322508).

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

2221011212020 is a wasteful number, since it uses less digits than its factorization.

2221011212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8657800 (or 8657798 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2221011212020 its reverse (202121101222), we get a palindrome (2423132313242).

The spelling of 2221011212020 in words is "two trillion, two hundred twenty-one billion, eleven million, two hundred twelve thousand, twenty".