20101012101010 has 96 divisors (see below), whose sum is σ = 40136999513472. Its totient is φ = 7232909629440.

The previous prime is 20101012100999. The next prime is 20101012101017. The reversal of 20101012101010 is 1010121010102.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (20101012101017) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 87692409 + ... + 87921331.

It is an arithmetic number, because the mean of its divisors is an integer number (418093744932).

Almost surely, 2^{20101012101010} is an apocalyptic number.

20101012101010 is a deficient number, since it is larger than the sum of its proper divisors (20035987412462).

20101012101010 is a wasteful number, since it uses less digits than its factorization.

20101012101010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230308 (or 230291 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 20101012101010 its reverse (1010121010102), we get a palindrome (21111133111112).

The spelling of 20101012101010 in words is "twenty trillion, one hundred one billion, twelve million, one hundred one thousand, ten".