101121332172 has 24 divisors (see below), whose sum is σ = 269656886016. Its totient is φ = 28891809168.

The previous prime is 101121332171. The next prime is 101121332233. The reversal of 101121332172 is 271233121101.

It is not an unprimeable number, because it can be changed into a prime (101121332171) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 601912608 + ... + 601912775.

It is an arithmetic number, because the mean of its divisors is an integer number (11235703584).

Almost surely, 2^101121332172 is an apocalyptic number.

101121332172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

101121332172 is an abundant number, since it is smaller than the sum of its proper divisors (168535553844).

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

101121332172 is a wasteful number, since it uses less digits than its factorization.

101121332172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1203825397 (or 1203825395 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 24.

Adding to 101121332172 its reverse (271233121101), we get a palindrome (372354453273).

The spelling of 101121332172 in words is "one hundred one billion, one hundred twenty-one million, three hundred thirty-two thousand, one hundred seventy-two".