21101213300002 has 24 divisors (see below), whose sum is σ = 34791709817088. Its totient is φ = 9591221733720.

The previous prime is 21101213299993. The next prime is 21101213300003. The reversal of 21101213300002 is 20000331210112.

It is a super-2 number, since 2×21101213300002² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21101213300003) 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 in 11 ways as a sum of consecutive naturals, for example, 8839083 + ... + 10969585.

It is an arithmetic number, because the mean of its divisors is an integer number (1449654575712).

Almost surely, 2^{21101213300002} is an apocalyptic number.

21101213300002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21101213300002 is a deficient number, since it is larger than the sum of its proper divisors (13690496517086).

21101213300002 is a wasteful number, since it uses less digits than its factorization.

21101213300002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2171454 (or 2171443 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 21101213300002 its reverse (20000331210112), we get a palindrome (41101544510114).

The spelling of 21101213300002 in words is "twenty-one trillion, one hundred one billion, two hundred thirteen million, three hundred thousand, two".