202120010210 has 16 divisors (see below), whose sum is σ = 364175183736. Its totient is φ = 80768189568.

The previous prime is 202120010207. The next prime is 202120010221. The reversal of 202120010210 is 12010021202.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 52412149969 + 149707860241 = 228937^2 + 386921^2 .

It is a junction number, because it is equal to n+sod(n) for n = 202120010191 and 202120010200.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9966179 + ... + 9986438.

Almost surely, 2^202120010210 is an apocalyptic number.

202120010210 is a deficient number, since it is larger than the sum of its proper divisors (162055173526).

202120010210 is a wasteful number, since it uses less digits than its factorization.

202120010210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19953637.

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

Adding to 202120010210 its reverse (12010021202), we get a palindrome (214130031412).

The spelling of 202120010210 in words is "two hundred two billion, one hundred twenty million, ten thousand, two hundred ten".