2021211101000 has 384 divisors, whose sum is σ = 5862160512000. Its totient is φ = 638687462400.

The previous prime is 2021211100873. The next prime is 2021211101011. The reversal of 2021211101000 is 1011121202.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1304848226 + ... + 1304849774.

It is an arithmetic number, because the mean of its divisors is an integer number (15266043000).

Almost surely, 2^{2021211101000} is an apocalyptic number.

2021211101000 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 2021211101000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2931080256000).

2021211101000 is an abundant number, since it is smaller than the sum of its proper divisors (3840949411000).

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

2021211101000 is a wasteful number, since it uses less digits than its factorization.

2021211101000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2706 (or 2679 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 2021211101000 its reverse (1011121202), we get a palindrome (2022222222202).

The spelling of 2021211101000 in words is "two trillion, twenty-one billion, two hundred eleven million, one hundred one thousand".