105270921100 has 36 divisors (see below), whose sum is σ = 232309740600. Its totient is φ = 41394664960.

The previous prime is 105270921037. The next prime is 105270921109. The reversal of 105270921100 is 1129072501.

It is a super-2 number, since 2×105270921100² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105270921109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8915365 + ... + 8927164.

It is an arithmetic number, because the mean of its divisors is an integer number (6453048350).

Almost surely, 2^105270921100 is an apocalyptic number.

105270921100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

105270921100 is an abundant number, since it is smaller than the sum of its proper divisors (127038819500).

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

105270921100 is a wasteful number, since it uses less digits than its factorization.

105270921100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17842602 (or 17842595 counting only the distinct ones).

The product of its (nonzero) digits is 1260, while the sum is 28.

Adding to 105270921100 its reverse (1129072501), we get a palindrome (106399993601).

The spelling of 105270921100 in words is "one hundred five billion, two hundred seventy million, nine hundred twenty-one thousand, one hundred".