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2020121212001 = 4742981302383
BaseRepresentation
bin11101011001011000100…
…110110111010001100001
321011010021201110022211012
4131121120212313101201
5231044202012241001
64144010400230305
7265643325661514
oct35313046672141
97133251408735
102020121212001
1170980183a212
1228761a60b395
1311865c09b789
146dabacc8d7b
15378346dd2bb
hex1d6589b7461

2020121212001 has 4 divisors (see below), whose sum is σ = 2063102514432. Its totient is φ = 1977139909572.

The previous prime is 2020121211949. The next prime is 2020121212033. The reversal of 2020121212001 is 1002121210202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2020121212001 - 26 = 2020121211937 is a prime.

It is a super-2 number, since 2×20201212120012 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2020121212091) 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, 21490651145 + ... + 21490651238.

It is an arithmetic number, because the mean of its divisors is an integer number (515775628608).

Almost surely, 22020121212001 is an apocalyptic number.

It is an amenable number.

2020121212001 is a deficient number, since it is larger than the sum of its proper divisors (42981302431).

2020121212001 is an equidigital number, since it uses as much as digits as its factorization.

2020121212001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42981302430.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2020121212001 its reverse (1002121210202), we get a palindrome (3022242422203).

The spelling of 2020121212001 in words is "two trillion, twenty billion, one hundred twenty-one million, two hundred twelve thousand, one".

Divisors: 1 47 42981302383 2020121212001