10120021332 has 12 divisors (see below), whose sum is σ = 23613383136. Its totient is φ = 3373340440.

The previous prime is 10120021313. The next prime is 10120021411. The reversal of 10120021332 is 23312002101.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 421667544 + ... + 421667567.

It is an arithmetic number, because the mean of its divisors is an integer number (1967781928).

Almost surely, 2^10120021332 is an apocalyptic number.

10120021332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10120021332 is an abundant number, since it is smaller than the sum of its proper divisors (13493361804).

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

10120021332 is a wasteful number, since it uses less digits than its factorization.

10120021332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843335118 (or 843335116 counting only the distinct ones).

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

Adding to 10120021332 its reverse (23312002101), we get a palindrome (33432023433).

The spelling of 10120021332 in words is "ten billion, one hundred twenty million, twenty-one thousand, three hundred thirty-two".