21230201101 has 8 divisors (see below), whose sum is σ = 21731871744. Its totient is φ = 20728891680.

The previous prime is 21230201099. The next prime is 21230201123. The reversal of 21230201101 is 10110203212.

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 21230201101 - 2¹ = 21230201099 is a prime.

It is a super-2 number, since 2×21230201101² (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 (21230201131) 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 7 ways as a sum of consecutive naturals, for example, 30516 + ... + 208306.

It is an arithmetic number, because the mean of its divisors is an integer number (2716483968).

Almost surely, 2^21230201101 is an apocalyptic number.

It is an amenable number.

21230201101 is a deficient number, since it is larger than the sum of its proper divisors (501670643).

21230201101 is a wasteful number, since it uses less digits than its factorization.

21230201101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180611.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 21230201101 its reverse (10110203212), we get a palindrome (31340404313).

The spelling of 21230201101 in words is "twenty-one billion, two hundred thirty million, two hundred one thousand, one hundred one".