2021000010210 has 192 divisors, whose sum is σ = 5772571459200. Its totient is φ = 507314575872.

The previous prime is 2021000010149. The next prime is 2021000010217. The reversal of 2021000010210 is 120100001202.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 2021000010192 and 2021000010201.

It is not an unprimeable number, because it can be changed into a prime (2021000010217) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 7109286 + ... + 7388094.

It is an arithmetic number, because the mean of its divisors is an integer number (30065476350).

Almost surely, 2^{2021000010210} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2021000010210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2886285729600).

2021000010210 is an abundant number, since it is smaller than the sum of its proper divisors (3751571448990).

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

2021000010210 is a wasteful number, since it uses less digits than its factorization.

2021000010210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279007 (or 278995 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 2021000010210 its reverse (120100001202), we get a palindrome (2141100011412).

The spelling of 2021000010210 in words is "two trillion, twenty-one billion, ten thousand, two hundred ten".