101001002221220 has 48 divisors (see below), whose sum is σ = 216390616041600. Its totient is φ = 39587945137920.

The previous prime is 101001002221213. The next prime is 101001002221291. The reversal of 101001002221220 is 22122200100101.

It is a junction number, because it is equal to n+sod(n) for n = 101001002221195 and 101001002221204.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137244065 + ... + 137978024.

It is an arithmetic number, because the mean of its divisors is an integer number (4508137834200).

Almost surely, 2^{101001002221220} is an apocalyptic number.

101001002221220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101001002221220 is an abundant number, since it is smaller than the sum of its proper divisors (115389613820380).

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

101001002221220 is a wasteful number, since it uses less digits than its factorization.

101001002221220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275222468 (or 275222466 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 101001002221220 its reverse (22122200100101), we get a palindrome (123123202321321).

The spelling of 101001002221220 in words is "one hundred one trillion, one billion, two million, two hundred twenty-one thousand, two hundred twenty".