21213300101 has 8 divisors (see below), whose sum is σ = 25519759680. Its totient is φ = 17225837568.

The previous prime is 21213300091. The next prime is 21213300109. The reversal of 21213300101 is 10100331212.

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 21213300101 - 2³⁰ = 20139558277 is a prime.

It is a super-2 number, since 2×21213300101² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21213300109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79749116 + ... + 79749381.

It is an arithmetic number, because the mean of its divisors is an integer number (3189969960).

Almost surely, 2^21213300101 is an apocalyptic number.

It is an amenable number.

21213300101 is a deficient number, since it is larger than the sum of its proper divisors (4306459579).

21213300101 is a wasteful number, since it uses less digits than its factorization.

21213300101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159498523.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 21213300101 its reverse (10100331212), we get a palindrome (31313631313).

The spelling of 21213300101 in words is "twenty-one billion, two hundred thirteen million, three hundred thousand, one hundred one".