2201021002020 has 24 divisors (see below), whose sum is σ = 6162858805824. Its totient is φ = 586938933856.

The previous prime is 2201021002009. The next prime is 2201021002021. The reversal of 2201021002020 is 202001201022.

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 = 2201021001987 and 2201021002005.

It is not an unprimeable number, because it can be changed into a prime (2201021002021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18341841624 + ... + 18341841743.

It is an arithmetic number, because the mean of its divisors is an integer number (256785783576).

Almost surely, 2^{2201021002020} is an apocalyptic number.

2201021002020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2201021002020 is an abundant number, since it is smaller than the sum of its proper divisors (3961837803804).

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

2201021002020 is a wasteful number, since it uses less digits than its factorization.

2201021002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36683683379 (or 36683683377 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 2201021002020 its reverse (202001201022), we get a palindrome (2403022203042).

The spelling of 2201021002020 in words is "two trillion, two hundred one billion, twenty-one million, two thousand, twenty".