20101212102011 has 8 divisors (see below), whose sum is σ = 20226755028480. Its totient is φ = 19975730799528.

The previous prime is 20101212101987. The next prime is 20101212102079. The reversal of 20101212102011 is 11020121210102.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20101212102011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20101212102911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14751491 + ... + 16056428.

It is an arithmetic number, because the mean of its divisors is an integer number (2528344378560).

Almost surely, 2^{20101212102011} is an apocalyptic number.

20101212102011 is a deficient number, since it is larger than the sum of its proper divisors (125542926469).

20101212102011 is a wasteful number, since it uses less digits than its factorization.

20101212102011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30811993.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 20101212102011 its reverse (11020121210102), we get a palindrome (31121333312113).

The spelling of 20101212102011 in words is "twenty trillion, one hundred one billion, two hundred twelve million, one hundred two thousand, eleven".