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101100110220 = 223251274422577
BaseRepresentation
bin101111000101000001…
…0010100000110001100
3100122221211200201202200
41132022002110012030
53124023112011340
6114240022121500
710206232520634
oct1361202240614
9318854621680
10101100110220
11399704161aa
1217716280290
1396c26cb635
144c711cb6c4
15296aae3330
hex178a09418c

101100110220 has 72 divisors (see below), whose sum is σ = 309085131264. Its totient is φ = 26747739648.

The previous prime is 101100110191. The next prime is 101100110257. The reversal of 101100110220 is 22011001101.

It is a happy number.

It is a super-2 number, since 2×1011001102202 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2188429 + ... + 2234148.

Almost surely, 2101100110220 is an apocalyptic number.

101100110220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101100110220 is an abundant number, since it is smaller than the sum of its proper divisors (207985021044).

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

101100110220 is a wasteful number, since it uses less digits than its factorization.

101100110220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4422719 (or 4422714 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 101100110220 its reverse (22011001101), we get a palindrome (123111111321).

The spelling of 101100110220 in words is "one hundred one billion, one hundred million, one hundred ten thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 9 10 12 15 18 20 30 36 45 60 90 127 180 254 381 508 635 762 1143 1270 1524 1905 2286 2540 3810 4572 5715 7620 11430 22860 4422577 8845154 13267731 17690308 22112885 26535462 39803193 44225770 53070924 66338655 79606386 88451540 132677310 159212772 199015965 265354620 398031930 561667279 796063860 1123334558 1685001837 2246669116 2808336395 3370003674 5055005511 5616672790 6740007348 8425009185 10110011022 11233345580 16850018370 20220022044 25275027555 33700036740 50550055110 101100110220