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220111021000221 = 31319793760074839
BaseRepresentation
bin110010000011000010010111…
…001101111100011000011101
31001212100102000111200201121020
4302003002113031330120131
5212322244332334001341
62100045335044554353
764235332202304051
oct6203022715743035
91055312014621536
10220111021000221
116415261808802a
122082aba76b29b9
1395a84c3450450
143c4d6048bbc61
151a6a8d599b566
hexc8309737c61d

220111021000221 has 32 divisors (see below), whose sum is σ = 336902705664000. Its totient is φ = 126699481741248.

The previous prime is 220111021000201. The next prime is 220111021000223. The reversal of 220111021000221 is 122000120111022.

It is a de Polignac number, because none of the positive numbers 2k-220111021000221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220111021000221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220111021000223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1879978881 + ... + 1880095958.

It is an arithmetic number, because the mean of its divisors is an integer number (10528209552000).

Almost surely, 2220111021000221 is an apocalyptic number.

It is an amenable number.

220111021000221 is a deficient number, since it is larger than the sum of its proper divisors (116791684663779).

220111021000221 is a wasteful number, since it uses less digits than its factorization.

220111021000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3760074953.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 220111021000221 its reverse (122000120111022), we get a palindrome (342111141111243).

The spelling of 220111021000221 in words is "two hundred twenty trillion, one hundred eleven billion, twenty-one million, two hundred twenty-one", and thus it is an aban number.

Divisors: 1 3 13 19 39 57 79 237 247 741 1027 1501 3081 4503 19513 58539 3760074839 11280224517 48880972907 71441421941 146642918721 214324265823 297045912281 891137736843 928738485233 2786215455699 3861596859653 5643872333339 11584790578959 16931617000017 73370340333407 220111021000221