Search a number
-
+
2020201010221 = 19106326368959
BaseRepresentation
bin11101011001011101010…
…111010001010000101101
321011010111021121111101211
4131121131113101100231
5231044332424311341
64144022330434421
7265645315154422
oct35313527212055
97133437544354
102020201010221
11709842892859
12287641292a11
1311867278b064
146dac773bd49
153783b702181
hex1d65d5d142d

2020201010221 has 4 divisors (see below), whose sum is σ = 2126527379200. Its totient is φ = 1913874641244.

The previous prime is 2020201010207. The next prime is 2020201010239. The reversal of 2020201010221 is 1220101020202.

It is a happy number.

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 not a de Polignac number, because 2020201010221 - 25 = 2020201010189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020201050221) 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, 53163184461 + ... + 53163184498.

It is an arithmetic number, because the mean of its divisors is an integer number (531631844800).

Almost surely, 22020201010221 is an apocalyptic number.

It is an amenable number.

2020201010221 is a deficient number, since it is larger than the sum of its proper divisors (106326368979).

2020201010221 is a wasteful number, since it uses less digits than its factorization.

2020201010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106326368978.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2020201010221 its reverse (1220101020202), we get a palindrome (3240302030423).

The spelling of 2020201010221 in words is "two trillion, twenty billion, two hundred one million, ten thousand, two hundred twenty-one".

Divisors: 1 19 106326368959 2020201010221