20102020210 has 8 divisors (see below), whose sum is σ = 36183636396. Its totient is φ = 8040808080.

The previous prime is 20102020207. The next prime is 20102020241. The reversal of 20102020210 is 1202020102.

It can be written as a sum of positive squares in 2 ways, for example, as 17556515001 + 2545505209 = 132501^2 + 50453^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (10), and also a Moran number because the ratio is a prime number: 2010202021 = 20102020210 / (2 + 0 + 1 + 0 + 2 + 0 + 2 + 0 + 2 + 1 + 0).

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, 1005101001 + ... + 1005101020.

Almost surely, 2^20102020210 is an apocalyptic number.

20102020210 is a deficient number, since it is larger than the sum of its proper divisors (16081616186).

20102020210 is a wasteful number, since it uses less digits than its factorization.

20102020210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2010202028.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 20102020210 its reverse (1202020102), we get a palindrome (21304040312).

The spelling of 20102020210 in words is "twenty billion, one hundred two million, twenty thousand, two hundred ten".