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20020012122 = 23112271336271
BaseRepresentation
bin10010101001010010…
…010010010001011010
31220200020011222201110
4102221102102101122
5312000110341442
613110322201150
71306054203165
oct225122222132
956606158643
1020020012122
118543858470
123a687b31b6
131b70893726
14d7cc14adc
157c28c069c
hex4a949245a

20020012122 has 32 divisors (see below), whose sum is σ = 43872482304. Its totient is φ = 6039940400.

The previous prime is 20020012109. The next prime is 20020012171. The reversal of 20020012122 is 22121002002.

It is a junction number, because it is equal to n+sod(n) for n = 20020012098 and 20020012107.

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, 653154 + ... + 683117.

It is an arithmetic number, because the mean of its divisors is an integer number (1371015072).

Almost surely, 220020012122 is an apocalyptic number.

20020012122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20020012122 is an abundant number, since it is smaller than the sum of its proper divisors (23852470182).

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

20020012122 is a wasteful number, since it uses less digits than its factorization.

20020012122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1336514.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20020012122 its reverse (22121002002), we get a palindrome (42141014124).

The spelling of 20020012122 in words is "twenty billion, twenty million, twelve thousand, one hundred twenty-two".

Divisors: 1 2 3 6 11 22 33 66 227 454 681 1362 2497 4994 7491 14982 1336271 2672542 4008813 8017626 14698981 29397962 44096943 88193886 303333517 606667034 910000551 1820001102 3336668687 6673337374 10010006061 20020012122