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2201201020 = 225110060051
BaseRepresentation
bin1000001100110011…
…1010100101111100
312200101221121010201
42003030322211330
514002001413040
61002231213244
7105355620454
oct20314724574
95611847121
102201201020
11a2a57a9a7
12515217224
13291062215
1416c4b0d64
15cd3a7a9a
hex8333a97c

2201201020 has 12 divisors (see below), whose sum is σ = 4622522184. Its totient is φ = 880480400.

The previous prime is 2201200979. The next prime is 2201201029. The reversal of 2201201020 is 201021022.

2201201020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 2201200988 and 2201201006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2201201029) 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, 55030006 + ... + 55030045.

It is an arithmetic number, because the mean of its divisors is an integer number (385210182).

Almost surely, 22201201020 is an apocalyptic number.

2201201020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2201201020 is an abundant number, since it is smaller than the sum of its proper divisors (2421321164).

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

2201201020 is a wasteful number, since it uses less digits than its factorization.

2201201020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110060060 (or 110060058 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 2201201020 is about 46916.9587675928. The cubic root of 2201201020 is about 1300.8280759692.

Adding to 2201201020 its reverse (201021022), we get a palindrome (2402222042).

The spelling of 2201201020 in words is "two billion, two hundred one million, two hundred one thousand, twenty".

Divisors: 1 2 4 5 10 20 110060051 220120102 440240204 550300255 1100600510 2201201020