210201012020 has 12 divisors (see below), whose sum is σ = 441422125284. Its totient is φ = 84080404800.

The previous prime is 210201012019. The next prime is 210201012031. The reversal of 210201012020 is 20210102012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 30150155044 + 180050856976 = 173638^2 + 424324^2 .

It is a junction number, because it is equal to n+sod(n) for n = 210201011992 and 210201012010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5255025281 + ... + 5255025320.

It is an arithmetic number, because the mean of its divisors is an integer number (36785177107).

Almost surely, 2^210201012020 is an apocalyptic number.

210201012020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210201012020 is an abundant number, since it is smaller than the sum of its proper divisors (231221113264).

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

210201012020 is a wasteful number, since it uses less digits than its factorization.

210201012020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10510050610 (or 10510050608 counting only the distinct ones).

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

Adding to 210201012020 its reverse (20210102012), we get a palindrome (230411114032).

The spelling of 210201012020 in words is "two hundred ten billion, two hundred one million, twelve thousand, twenty".