21101111000701 has 2 divisors, whose sum is σ = 21101111000702. Its totient is φ = 21101111000700.

The previous prime is 21101111000689. The next prime is 21101111000737. The reversal of 21101111000701 is 10700011110112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13690547605476 + 7410563395225 = 3700074^2 + 2722235^2 .

It is a cyclic number.

It is not a de Polignac number, because 21101111000701 - 2⁷ = 21101111000573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21101115000701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10550555500350 + 10550555500351.

It is an arithmetic number, because the mean of its divisors is an integer number (10550555500351).

Almost surely, 2^{21101111000701} is an apocalyptic number.

It is an amenable number.

21101111000701 is a deficient number, since it is larger than the sum of its proper divisors (1).

21101111000701 is an equidigital number, since it uses as much as digits as its factorization.

21101111000701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14, while the sum is 16.

Adding to 21101111000701 its reverse (10700011110112), we get a palindrome (31801122110813).

The spelling of 21101111000701 in words is "twenty-one trillion, one hundred one billion, one hundred eleven million, seven hundred one", and thus it is an aban number.