13575101220 has 36 divisors (see below), whose sum is σ = 41177807580. Its totient is φ = 3620026944.

The previous prime is 13575101219. The next prime is 13575101249. The reversal of 13575101220 is 2210157531.

13575101220 is a `hidden beast` number, since 135 + 7 + 510 + 12 + 2 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 10340449344 + 3234651876 = 101688^2 + 56874^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37708435 + ... + 37708794.

Almost surely, 2^13575101220 is an apocalyptic number.

13575101220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13575101220 is an abundant number, since it is smaller than the sum of its proper divisors (27602706360).

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

13575101220 is a wasteful number, since it uses less digits than its factorization.

13575101220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75417244 (or 75417239 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

Adding to 13575101220 its reverse (2210157531), we get a palindrome (15785258751).

The spelling of 13575101220 in words is "thirteen billion, five hundred seventy-five million, one hundred one thousand, two hundred twenty".