20012010210 has 96 divisors (see below), whose sum is σ = 53501076720. Its totient is φ = 5186764800.

The previous prime is 20012010203. The next prime is 20012010253. The reversal of 20012010210 is 1201021002.

It can be written as a sum of positive squares in 8 ways, for example, as 1196675649 + 18815334561 = 34593^2 + 137169^2 .

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 = 20012010192 and 20012010201.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 982530 + ... + 1002690.

Almost surely, 2^20012010210 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20012010210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26750538360).

20012010210 is an abundant number, since it is smaller than the sum of its proper divisors (33489066510).

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

20012010210 is a wasteful number, since it uses less digits than its factorization.

20012010210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20484 (or 20481 counting only the distinct ones).

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

Adding to 20012010210 its reverse (1201021002), we get a palindrome (21213031212).

The spelling of 20012010210 in words is "twenty billion, twelve million, ten thousand, two hundred ten".