21300122102 has 32 divisors (see below), whose sum is σ = 38446099200. Its totient is φ = 8645967648.

The previous prime is 21300122087. The next prime is 21300122117. The reversal of 21300122102 is 20122100312.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (21300122087) and next prime (21300122117).

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1404653 + ... + 1419735.

It is an arithmetic number, because the mean of its divisors is an integer number (1201440600).

Almost surely, 2^21300122102 is an apocalyptic number.

21300122102 is a deficient number, since it is larger than the sum of its proper divisors (17145977098).

21300122102 is a wasteful number, since it uses less digits than its factorization.

21300122102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20420.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 21300122102 its reverse (20122100312), we get a palindrome (41422222414).

The spelling of 21300122102 in words is "twenty-one billion, three hundred million, one hundred twenty-two thousand, one hundred two".