21141299701 has 2 divisors, whose sum is σ = 21141299702. Its totient is φ = 21141299700.

The previous prime is 21141299693. The next prime is 21141299717. The reversal of 21141299701 is 10799214112.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18454950801 + 2686348900 = 135849^2 + 51830^2 .

It is a cyclic number.

It is not a de Polignac number, because 21141299701 - 2³ = 21141299693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21141299761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10570649850 + 10570649851.

It is an arithmetic number, because the mean of its divisors is an integer number (10570649851).

Almost surely, 2^21141299701 is an apocalyptic number.

It is an amenable number.

21141299701 is a deficient number, since it is larger than the sum of its proper divisors (1).

21141299701 is an equidigital number, since it uses as much as digits as its factorization.

21141299701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 37.

It can be divided in two parts, 211412 and 99701, that added together give a palindrome (311113).

The spelling of 21141299701 in words is "twenty-one billion, one hundred forty-one million, two hundred ninety-nine thousand, seven hundred one".