21011301000212 has 6 divisors (see below), whose sum is σ = 36769776750378. Its totient is φ = 10505650500104.

The previous prime is 21011301000211. The next prime is 21011301000233. The reversal of 21011301000212 is 21200010311012.

It can be written as a sum of positive squares in only one way, i.e., 15957500259856 + 5053800740356 = 3994684^2 + 2248066^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21011301000211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2626412625023 + ... + 2626412625030.

It is an arithmetic number, because the mean of its divisors is an integer number (6128296125063).

Almost surely, 2^{21011301000212} is an apocalyptic number.

It is an amenable number.

21011301000212 is a deficient number, since it is larger than the sum of its proper divisors (15758475750166).

21011301000212 is a wasteful number, since it uses less digits than its factorization.

21011301000212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5252825250057 (or 5252825250055 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 21011301000212 its reverse (21200010311012), we get a palindrome (42211311311224).

The spelling of 21011301000212 in words is "twenty-one trillion, eleven billion, three hundred one million, two hundred twelve", and thus it is an aban number.