20101110030220 has 96 divisors (see below), whose sum is σ = 44862186801600. Its totient is φ = 7551006188544.

The previous prime is 20101110030179. The next prime is 20101110030259. The reversal of 20101110030220 is 2203001110102.

It is a super-2 number, since 2×20101110030220² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20101110030220.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69149299 + ... + 69439381.

It is an arithmetic number, because the mean of its divisors is an integer number (467314445850).

Almost surely, 2^{20101110030220} is an apocalyptic number.

20101110030220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20101110030220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22431093400800).

20101110030220 is an abundant number, since it is smaller than the sum of its proper divisors (24761076771380).

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

20101110030220 is a wasteful number, since it uses less digits than its factorization.

20101110030220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293387 (or 293385 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 20101110030220 its reverse (2203001110102), we get a palindrome (22304111140322).

The spelling of 20101110030220 in words is "twenty trillion, one hundred one billion, one hundred ten million, thirty thousand, two hundred twenty".