101130001220 has 48 divisors (see below), whose sum is σ = 214369082928. Its totient is φ = 40073564160.

The previous prime is 101130001187. The next prime is 101130001223. The reversal of 101130001220 is 22100031101.

It can be written as a sum of positive squares in 8 ways, for example, as 6720064576 + 94409936644 = 81976^2 + 307262^2 .

It is not an unprimeable number, because it can be changed into a prime (101130001223) 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 15 ways as a sum of consecutive naturals, for example, 862940 + ... + 973100.

It is an arithmetic number, because the mean of its divisors is an integer number (4466022561).

Almost surely, 2^101130001220 is an apocalyptic number.

101130001220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101130001220 is an abundant number, since it is smaller than the sum of its proper divisors (113239081708).

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

101130001220 is a wasteful number, since it uses less digits than its factorization.

101130001220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110600 (or 110598 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 101130001220 its reverse (22100031101), we get a palindrome (123230032321).

The spelling of 101130001220 in words is "one hundred one billion, one hundred thirty million, one thousand, two hundred twenty".