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2112122210022 = 23211471032518779
BaseRepresentation
bin11110101111000100010…
…010110100011011100110
321110220202102120021012100
4132233010102310123212
5234101111241210042
64254143501032530
7305411233364526
oct36570422643346
97426672507170
102112122210022
11744822a19780
122a1415555746
13124231627446
1474327861686
1539e1b57824c
hex1ebc44b46e6

2112122210022 has 192 divisors, whose sum is σ = 5169106575360. Its totient is φ = 617795640000.

The previous prime is 2112122209993. The next prime is 2112122210041. The reversal of 2112122210022 is 2200122212112.

It is a happy number.

2112122210022 is a `hidden beast` number, since 211 + 212 + 221 + 0 + 0 + 22 = 666.

It is a super-2 number, since 2×21121222100222 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2112122209977 and 2112122210004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 240583629 + ... + 240592407.

It is an arithmetic number, because the mean of its divisors is an integer number (26922430080).

Almost surely, 22112122210022 is an apocalyptic number.

2112122210022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2112122210022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2584553287680).

2112122210022 is an abundant number, since it is smaller than the sum of its proper divisors (3056984365338).

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

2112122210022 is a wasteful number, since it uses less digits than its factorization.

2112122210022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9199 (or 9196 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2112122210022 its reverse (2200122212112), we get a palindrome (4312244422134).

The spelling of 2112122210022 in words is "two trillion, one hundred twelve billion, one hundred twenty-two million, two hundred ten thousand, twenty-two".