21110301299 has 4 divisors (see below), whose sum is σ = 21232326336. Its totient is φ = 20988276264.

The previous prime is 21110301193. The next prime is 21110301307. The reversal of 21110301299 is 99210301112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21110301299 - 2²⁴ = 21093524083 is a prime.

It is a super-2 number, since 2×21110301299² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21110361299) 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 3 ways as a sum of consecutive naturals, for example, 61012259 + ... + 61012604.

It is an arithmetic number, because the mean of its divisors is an integer number (5308081584).

Almost surely, 2^21110301299 is an apocalyptic number.

21110301299 is a deficient number, since it is larger than the sum of its proper divisors (122025037).

21110301299 is a wasteful number, since it uses less digits than its factorization.

21110301299 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122025036.

The product of its (nonzero) digits is 972, while the sum is 29.

The spelling of 21110301299 in words is "twenty-one billion, one hundred ten million, three hundred one thousand, two hundred ninety-nine".