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220011111202220 = 22513968518737097
BaseRepresentation
bin110010000001100101010100…
…001000010011110110101100
31001211222212010121210010020022
4302001211110020103312230
5212314130223431432340
62055531413103141312
764225164302112122
oct6201452410236654
91054885117703208
10220011111202220
1164114208661038
1220813763ba4838
13959bc60533890
143c4884781b912
151a67ed962d3b5
hexc81954213dac

220011111202220 has 48 divisors (see below), whose sum is σ = 497568784311648. Its totient is φ = 81234023769600.

The previous prime is 220011111202193. The next prime is 220011111202271. The reversal of 220011111202220 is 22202111110022.

It is a super-2 number, since 2×2200111112022202 (a number of 29 digits) contains 22 as substring.

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, 20812712 + ... + 29549808.

It is an arithmetic number, because the mean of its divisors is an integer number (10366016339826).

Almost surely, 2220011111202220 is an apocalyptic number.

220011111202220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220011111202220 is an abundant number, since it is smaller than the sum of its proper divisors (277557673109428).

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

220011111202220 is a wasteful number, since it uses less digits than its factorization.

220011111202220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8833970 (or 8833968 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 220011111202220 its reverse (22202111110022), we get a palindrome (242213222312242).

The spelling of 220011111202220 in words is "two hundred twenty trillion, eleven billion, one hundred eleven million, two hundred two thousand, two hundred twenty".

Divisors: 1 2 4 5 10 13 20 26 52 65 130 260 96851 193702 387404 484255 968510 1259063 1937020 2518126 5036252 6295315 8737097 12590630 17474194 25181260 34948388 43685485 87370970 113582261 174741940 227164522 454329044 567911305 1135822610 2271645220 846196581547 1692393163094 3384786326188 4230982907735 8461965815470 11000555560111 16923931630940 22001111120222 44002222240444 55002777800555 110005555601110 220011111202220