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20020102122 = 2317196275511
BaseRepresentation
bin10010101001010010…
…101000001111101010
31220200020100120011210
4102221102220033222
5312000121231442
613110324133550
71306055026446
oct225122501752
956606316153
1020020102122
11854390a049
123a688372b6
131b708c5697
14d7cc39826
157c28dc19c
hex4a94a83ea

20020102122 has 16 divisors (see below), whose sum is σ = 42395510592. Its totient is φ = 6280816320.

The previous prime is 20020102061. The next prime is 20020102127. The reversal of 20020102122 is 22120102002.

It is a junction number, because it is equal to n+sod(n) for n = 20020102098 and 20020102107.

It is not an unprimeable number, because it can be changed into a prime (20020102127) 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, 98137654 + ... + 98137857.

It is an arithmetic number, because the mean of its divisors is an integer number (2649719412).

Almost surely, 220020102122 is an apocalyptic number.

20020102122 is an abundant number, since it is smaller than the sum of its proper divisors (22375408470).

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

20020102122 is a wasteful number, since it uses less digits than its factorization.

20020102122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196275533.

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

Adding to 20020102122 its reverse (22120102002), we get a palindrome (42140204124).

The spelling of 20020102122 in words is "twenty billion, twenty million, one hundred two thousand, one hundred twenty-two".

Divisors: 1 2 3 6 17 34 51 102 196275511 392551022 588826533 1177653066 3336683687 6673367374 10010051061 20020102122