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2210222442440 = 23555255561061
BaseRepresentation
bin100000001010011011100…
…001100000011111001000
321211021222012110102020202
4200022123201200133020
5242203013421124230
64411210121311332
7315453241532165
oct40123341403710
97737865412222
102210222442440
11782393a48321
122b8433035548
1313056668504c
1478d9247906c
153c75daeda45
hex2029b8607c8

2210222442440 has 16 divisors (see below), whose sum is σ = 4973000495580. Its totient is φ = 884088976960.

The previous prime is 2210222442437. The next prime is 2210222442443. The reversal of 2210222442440 is 442442220122.

It is an interprime number because it is at equal distance from previous prime (2210222442437) and next prime (2210222442443).

It can be written as a sum of positive squares in 2 ways, for example, as 2166731008324 + 43491434116 = 1471982^2 + 208546^2 .

It is a super-2 number, since 2×22102224424402 (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2210222442443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27627780491 + ... + 27627780570.

Almost surely, 22210222442440 is an apocalyptic number.

2210222442440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2210222442440 is an abundant number, since it is smaller than the sum of its proper divisors (2762778053140).

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

2210222442440 is a wasteful number, since it uses less digits than its factorization.

2210222442440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55255561072 (or 55255561068 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 29.

Adding to 2210222442440 its reverse (442442220122), we get a palindrome (2652664662562).

The spelling of 2210222442440 in words is "two trillion, two hundred ten billion, two hundred twenty-two million, four hundred forty-two thousand, four hundred forty".

Divisors: 1 2 4 5 8 10 20 40 55255561061 110511122122 221022244244 276277805305 442044488488 552555610610 1105111221220 2210222442440