21002233101 has 8 divisors (see below), whose sum is σ = 28036357440. Its totient is φ = 13984798752.

The previous prime is 21002233093. The next prime is 21002233117. The reversal of 21002233101 is 10133220012.

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

It is not a de Polignac number, because 21002233101 - 2³ = 21002233093 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21002233141) 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, 4169560 + ... + 4174593.

It is an arithmetic number, because the mean of its divisors is an integer number (3504544680).

Almost surely, 2^21002233101 is an apocalyptic number.

It is an amenable number.

21002233101 is a deficient number, since it is larger than the sum of its proper divisors (7034124339).

21002233101 is an equidigital number, since it uses as much as digits as its factorization.

21002233101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8344995.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 21002233101 its reverse (10133220012), we get a palindrome (31135453113).

The spelling of 21002233101 in words is "twenty-one billion, two million, two hundred thirty-three thousand, one hundred one".