21120132102 has 8 divisors (see below), whose sum is σ = 42240264216. Its totient is φ = 7040044032.

The previous prime is 21120132037. The next prime is 21120132107. The reversal of 21120132102 is 20123102112.

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

21120132102 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21120132107) 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 3 ways as a sum of consecutive naturals, for example, 1760011003 + ... + 1760011014.

It is an arithmetic number, because the mean of its divisors is an integer number (5280033027).

Almost surely, 2^21120132102 is an apocalyptic number.

21120132102 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21120132102 is a wasteful number, since it uses less digits than its factorization.

21120132102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3520022022.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 21120132102 its reverse (20123102112), we get a palindrome (41243234214).

The spelling of 21120132102 in words is "twenty-one billion, one hundred twenty million, one hundred thirty-two thousand, one hundred two".