220103211223120 has 20 divisors (see below), whose sum is σ = 511739966093940. Its totient is φ = 88041284489216.

The previous prime is 220103211223033. The next prime is 220103211223127. The reversal of 220103211223120 is 21322112301022.

It can be written as a sum of positive squares in 2 ways, for example, as 44352722926656 + 175750488296464 = 6659784^2 + 13257092^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 220103211223091 and 220103211223100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220103211223127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1375645070065 + ... + 1375645070224.

It is an arithmetic number, because the mean of its divisors is an integer number (25586998304697).

Almost surely, 2^{220103211223120} is an apocalyptic number.

220103211223120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220103211223120 is an abundant number, since it is smaller than the sum of its proper divisors (291636754870820).

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

220103211223120 is a wasteful number, since it uses less digits than its factorization.

220103211223120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2751290140302 (or 2751290140296 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 220103211223120 its reverse (21322112301022), we get a palindrome (241425323524142).

The spelling of 220103211223120 in words is "two hundred twenty trillion, one hundred three billion, two hundred eleven million, two hundred twenty-three thousand, one hundred twenty".