2021222010000 has 200 divisors, whose sum is σ = 6735253828864. Its totient is φ = 521605440000.

The previous prime is 2021222009951. The next prime is 2021222010013. The reversal of 2021222010000 is 102221202.

It is a tau number, because it is divible by the number of its divisors (200).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 156679 + ... + 2016678.

Almost surely, 2^{2021222010000} is an apocalyptic number.

2021222010000 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 2021222010000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3367626914432).

2021222010000 is an abundant number, since it is smaller than the sum of its proper divisors (4714031818864).

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

2021222010000 is a wasteful number, since it uses less digits than its factorization.

2021222010000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2173419 (or 2173398 counting only the distinct ones).

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

Adding to 2021222010000 its reverse (102221202), we get a palindrome (2021324231202).

It can be divided in two parts, 202122 and 2010000, that added together give a palindrome (2212122).

The spelling of 2021222010000 in words is "two trillion, twenty-one billion, two hundred twenty-two million, ten thousand".