2021201222000 has 320 divisors, whose sum is σ = 5169197150208. Its totient is φ = 762854400000.

The previous prime is 2021201221979. The next prime is 2021201222009. The reversal of 2021201222000 is 2221021202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021201222009) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1923121475 + ... + 1923122525.

Almost surely, 2^{2021201222000} is an apocalyptic number.

2021201222000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2021201222000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2584598575104).

2021201222000 is an abundant number, since it is smaller than the sum of its proper divisors (3147995928208).

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

2021201222000 is a wasteful number, since it uses less digits than its factorization.

2021201222000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1625 (or 1609 counting only the distinct ones).

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

Adding to 2021201222000 its reverse (2221021202), we get a palindrome (2023422243202).

The spelling of 2021201222000 in words is "two trillion, twenty-one billion, two hundred one million, two hundred twenty-two thousand".