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2020110122121 = 371315747131661
BaseRepresentation
bin11101011001010111111…
…100100011110010001001
321011010020221120220100220
4131121113330203302021
5231044141142401441
64144005322420253
7265643132502510
oct35312774436211
97133227526326
102020110122121
117097a6555223
12287616961689
131186599b7b10
146dab963d677
153783374c466
hex1d657f23c89

2020110122121 has 32 divisors (see below), whose sum is σ = 3336167563008. Its totient is φ = 1058765610240.

The previous prime is 2020110122101. The next prime is 2020110122131. The reversal of 2020110122121 is 1212210110202.

It is not a de Polignac number, because 2020110122121 - 213 = 2020110113929 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2020110122121.

It is not an unprimeable number, because it can be changed into a prime (2020110122101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23522970 + ... + 23608691.

It is an arithmetic number, because the mean of its divisors is an integer number (104255236344).

Almost surely, 22020110122121 is an apocalyptic number.

2020110122121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2020110122121 is a deficient number, since it is larger than the sum of its proper divisors (1316057440887).

2020110122121 is a wasteful number, since it uses less digits than its factorization.

2020110122121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47131841.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 2020110122121 its reverse (1212210110202), we get a palindrome (3232320232323).

The spelling of 2020110122121 in words is "two trillion, twenty billion, one hundred ten million, one hundred twenty-two thousand, one hundred twenty-one".

Divisors: 1 3 7 13 21 39 91 157 273 471 1099 2041 3297 6123 14287 42861 47131661 141394983 329921627 612711593 989764881 1838134779 4288981151 7399670777 12866943453 22199012331 51797695439 96195720101 155393086317 288587160303 673370040707 2020110122121