11012100010021 has 16 divisors (see below), whose sum is σ = 12088241460288. Its totient is φ = 9948479097600.

The previous prime is 11012100010001. The next prime is 11012100010111. The reversal of 11012100010021 is 12001000121011.

It is a cyclic number.

It is not a de Polignac number, because 11012100010021 - 2³³ = 11003510075429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11012100010001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16046551 + ... + 16718731.

It is an arithmetic number, because the mean of its divisors is an integer number (755515091268).

Almost surely, 2^{11012100010021} is an apocalyptic number.

11012100010021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11012100010021 is a deficient number, since it is larger than the sum of its proper divisors (1076141450267).

11012100010021 is a wasteful number, since it uses less digits than its factorization.

11012100010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681492.

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

Adding to 11012100010021 its reverse (12001000121011), we get a palindrome (23013100131032).

The spelling of 11012100010021 in words is "eleven trillion, twelve billion, one hundred million, ten thousand, twenty-one".