21012200101311 has 8 divisors (see below), whose sum is σ = 28022425594800. Its totient is φ = 14005054004352.

The previous prime is 21012200101183. The next prime is 21012200101313. The reversal of 21012200101311 is 11310100221012.

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

It is not a de Polignac number, because 21012200101311 - 2⁷ = 21012200101183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21012200101313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 769833210 + ... + 769860503.

It is an arithmetic number, because the mean of its divisors is an integer number (3502803199350).

Almost surely, 2^{21012200101311} is an apocalyptic number.

21012200101311 is a deficient number, since it is larger than the sum of its proper divisors (7010225493489).

21012200101311 is a wasteful number, since it uses less digits than its factorization.

21012200101311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1539698265.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 21012200101311 its reverse (11310100221012), we get a palindrome (32322300322323).

The spelling of 21012200101311 in words is "twenty-one trillion, twelve billion, two hundred million, one hundred one thousand, three hundred eleven".