21117735101 has 8 divisors (see below), whose sum is σ = 21316864800. Its totient is φ = 20918703600.

The previous prime is 21117735097. The next prime is 21117735103. The reversal of 21117735101 is 10153771112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21117735101 - 2² = 21117735097 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21117735103) 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 in 7 ways as a sum of consecutive naturals, for example, 450626 + ... + 495276.

It is an arithmetic number, because the mean of its divisors is an integer number (2664608100).

Almost surely, 2^21117735101 is an apocalyptic number.

It is an amenable number.

21117735101 is a deficient number, since it is larger than the sum of its proper divisors (199129699).

21117735101 is a wasteful number, since it uses less digits than its factorization.

21117735101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49099.

The product of its (nonzero) digits is 1470, while the sum is 29.

The spelling of 21117735101 in words is "twenty-one billion, one hundred seventeen million, seven hundred thirty-five thousand, one hundred one".