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101222211244 = 227111027331991
BaseRepresentation
bin101111001000101010…
…0000101111010101100
3100200021100110002212211
41132101110011322230
53124300341224434
6114300103140204
710212244412410
oct1362124057254
9320240402784
10101222211244
1139a23332540
121774b144664
139711aac96b
144c834d2d40
1529766b1464
hex1791505eac

101222211244 has 48 divisors (see below), whose sum is σ = 220876862976. Its totient is φ = 39432153600.

The previous prime is 101222211229. The next prime is 101222211271. The reversal of 101222211244 is 442112222101.

It is a Harshad number since it is a multiple of its sum of digits (22).

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, 3148089 + ... + 3180079.

It is an arithmetic number, because the mean of its divisors is an integer number (4601601312).

Almost surely, 2101222211244 is an apocalyptic number.

101222211244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

101222211244 is an abundant number, since it is smaller than the sum of its proper divisors (119654651732).

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

101222211244 is a wasteful number, since it uses less digits than its factorization.

101222211244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42286 (or 42284 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 101222211244 its reverse (442112222101), we get a palindrome (543334433345).

The spelling of 101222211244 in words is "one hundred one billion, two hundred twenty-two million, two hundred eleven thousand, two hundred forty-four".

Divisors: 1 2 4 7 11 14 22 28 44 77 154 308 10273 20546 31991 41092 63982 71911 113003 127964 143822 223937 226006 287644 351901 447874 452012 703802 791021 895748 1407604 1582042 2463307 3164084 4926614 9853228 328643543 657287086 1314574172 2300504801 3615078973 4601009602 7230157946 9202019204 14460315892 25305552811 50611105622 101222211244