20100244232220 has 24 divisors (see below), whose sum is σ = 56280683850384. Its totient is φ = 5360065128576.

The previous prime is 20100244232197. The next prime is 20100244232221. The reversal of 20100244232220 is 2223244200102.

It is a super-2 number, since 2×20100244232220² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20100244232221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167502035209 + ... + 167502035328.

It is an arithmetic number, because the mean of its divisors is an integer number (2345028493766).

Almost surely, 2^{20100244232220} is an apocalyptic number.

20100244232220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20100244232220 is an abundant number, since it is smaller than the sum of its proper divisors (36180439618164).

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

20100244232220 is a wasteful number, since it uses less digits than its factorization.

20100244232220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 335004070549 (or 335004070547 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 20100244232220 its reverse (2223244200102), we get a palindrome (22323488432322).

The spelling of 20100244232220 in words is "twenty trillion, one hundred billion, two hundred forty-four million, two hundred thirty-two thousand, two hundred twenty".