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20020112222 = 2111376642373
BaseRepresentation
bin10010101001010010…
…101010101101011110
31220200020101002000212
4102221102222231132
5312000122042342
613110324252422
71306055101055
oct225122525536
956606332025
1020020112222
1185439166a0
123a68841112
131b708ca166
14d7cc3d39c
157c28e0182
hex4a94aab5e

20020112222 has 16 divisors (see below), whose sum is σ = 32999314032. Its totient is φ = 9033625920.

The previous prime is 20020112207. The next prime is 20020112257. The reversal of 20020112222 is 22221102002.

It is a junction number, because it is equal to n+sod(n) for n = 20020112197 and 20020112206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3318173 + ... + 3324200.

It is an arithmetic number, because the mean of its divisors is an integer number (2062457127).

Almost surely, 220020112222 is an apocalyptic number.

20020112222 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20020112222 is a deficient number, since it is larger than the sum of its proper divisors (12979201810).

20020112222 is a wasteful number, since it uses less digits than its factorization.

20020112222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6642523.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 20020112222 its reverse (22221102002), we get a palindrome (42241214224).

The spelling of 20020112222 in words is "twenty billion, twenty million, one hundred twelve thousand, two hundred twenty-two".

Divisors: 1 2 11 22 137 274 1507 3014 6642373 13284746 73066103 146132206 910005101 1820010202 10010056111 20020112222