21011100301012 has 12 divisors (see below), whose sum is σ = 38368096202016. Its totient is φ = 10048787100440.

The previous prime is 21011100301001. The next prime is 21011100301013. The reversal of 21011100301012 is 21010300111012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21011100300983 and 21011100301001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21011100301013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114190762414 + ... + 114190762597.

It is an arithmetic number, because the mean of its divisors is an integer number (3197341350168).

Almost surely, 2^{21011100301012} is an apocalyptic number.

It is an amenable number.

21011100301012 is a deficient number, since it is larger than the sum of its proper divisors (17356995901004).

21011100301012 is a wasteful number, since it uses less digits than its factorization.

21011100301012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228381525038 (or 228381525036 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 21011100301012 its reverse (21010300111012), we get a palindrome (42021400412024).

The spelling of 21011100301012 in words is "twenty-one trillion, eleven billion, one hundred million, three hundred one thousand, twelve".