20010020101010 has 16 divisors (see below), whose sum is σ = 36608495792472. Its totient is φ = 7872794793600.

The previous prime is 20010020100979. The next prime is 20010020101079. The reversal of 20010020101010 is 1010102001002.

It can be written as a sum of positive squares in 4 ways, for example, as 6656776685329 + 13353243415681 = 2580073^2 + 3654209^2 .

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, 16401655211 + ... + 16401656430.

Almost surely, 2^{20010020101010} is an apocalyptic number.

20010020101010 is a deficient number, since it is larger than the sum of its proper divisors (16598475691462).

20010020101010 is a wasteful number, since it uses less digits than its factorization.

20010020101010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32803311709.

The product of its (nonzero) digits is 4, while the sum is 8.

Adding to 20010020101010 its reverse (1010102001002), we get a palindrome (21020122102012).

The spelling of 20010020101010 in words is "twenty trillion, ten billion, twenty million, one hundred one thousand, ten".