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22201110212020 = 22510310777237967
BaseRepresentation
bin1010000110001000110010…
…10010011010110110110100
32220121101221112122122200221
411003010121102122312310
510402220333203241040
6115115014344544124
74450656131101465
oct503043122326664
986541845578627
1022201110212020
11708a48aa29813
1225a6882a82044
13c5072bb8215c
1456a77a428d6c
1528777d9d974a
hex14311949adb4

22201110212020 has 24 divisors (see below), whose sum is σ = 47074975444224. Its totient is φ = 8794226180256.

The previous prime is 22201110211981. The next prime is 22201110212023. The reversal of 22201110212020 is 2021201110222.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 22201110211985 and 22201110212003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22201110212023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5388616924 + ... + 5388621043.

It is an arithmetic number, because the mean of its divisors is an integer number (1961457310176).

Almost surely, 222201110212020 is an apocalyptic number.

22201110212020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22201110212020 is an abundant number, since it is smaller than the sum of its proper divisors (24873865232204).

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

22201110212020 is a wasteful number, since it uses less digits than its factorization.

22201110212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10777238079 (or 10777238077 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22201110212020 its reverse (2021201110222), we get a palindrome (24222311322242).

The spelling of 22201110212020 in words is "twenty-two trillion, two hundred one billion, one hundred ten million, two hundred twelve thousand, twenty".

Divisors: 1 2 4 5 10 20 103 206 412 515 1030 2060 10777237967 21554475934 43108951868 53886189835 107772379670 215544759340 1110055510601 2220111021202 4440222042404 5550277553005 11100555106010 22201110212020