2021221022000 has 40 divisors (see below), whose sum is σ = 4887312436032. Its totient is φ = 808488408000.

The previous prime is 2021221021997. The next prime is 2021221022003. The reversal of 2021221022000 is 2201221202.

It is an interprime number because it is at equal distance from previous prime (2021221021997) and next prime (2021221022003).

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (2021221022003) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 505303256 + ... + 505307255.

Almost surely, 2^{2021221022000} is an apocalyptic number.

2021221022000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2021221022000 is an abundant number, since it is smaller than the sum of its proper divisors (2866091414032).

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

2021221022000 is a wasteful number, since it uses less digits than its factorization.

2021221022000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010610534 (or 1010610518 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 2021221022000 its reverse (2201221202), we get a palindrome (2023422243202).

The spelling of 2021221022000 in words is "two trillion, twenty-one billion, two hundred twenty-one million, twenty-two thousand".