2021002010210 has 32 divisors (see below), whose sum is σ = 3779396515440. Its totient is φ = 777174995968.

The previous prime is 2021002010189. The next prime is 2021002010221. The reversal of 2021002010210 is 120102001202.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 456498868609 + 1564503141601 = 675647^2 + 1250801^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2021002010191 and 2021002010200.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14887307 + ... + 15022446.

Almost surely, 2^{2021002010210} is an apocalyptic number.

2021002010210 is a deficient number, since it is larger than the sum of its proper divisors (1758394505230).

2021002010210 is a wasteful number, since it uses less digits than its factorization.

2021002010210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29910022.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 2021002010210 its reverse (120102001202), we get a palindrome (2141104011412).

The spelling of 2021002010210 in words is "two trillion, twenty-one billion, two million, ten thousand, two hundred ten".