101101100221220 has 36 divisors (see below), whose sum is σ = 233368076797212. Its totient is φ = 36764036443200.

The previous prime is 101101100221213. The next prime is 101101100221249. The reversal of 101101100221220 is 22122001101101.

It can be written as a sum of positive squares in 2 ways, for example, as 80312461205284 + 20788639015936 = 8961722^2 + 4559456^2 .

It is a junction number, because it is equal to n+sod(n) for n = 101101100221195 and 101101100221204.

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, 20888654651 + ... + 20888659490.

Almost surely, 2^{101101100221220} is an apocalyptic number.

101101100221220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101101100221220 is an abundant number, since it is smaller than the sum of its proper divisors (132266976575992).

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

101101100221220 is a wasteful number, since it uses less digits than its factorization.

101101100221220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41777314172 (or 41777314159 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 101101100221220 its reverse (22122001101101), we get a palindrome (123223101322321).

The spelling of 101101100221220 in words is "one hundred one trillion, one hundred one billion, one hundred million, two hundred twenty-one thousand, two hundred twenty".