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2022102221 = 5934272919
BaseRepresentation
bin111100010000110…
…1101010011001101
312012220221102202212
41320201231103031
513120124232341
6532352400205
7101052404516
oct17041552315
95186842685
102022102221
11948473367
12485246065
13262c155b9
141527ada0d
15bc7cb5eb
hex7886d4cd

2022102221 has 4 divisors (see below), whose sum is σ = 2056375200. Its totient is φ = 1987829244.

The previous prime is 2022102217. The next prime is 2022102233. The reversal of 2022102221 is 1222012202.

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 2022102221 - 22 = 2022102217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2022102196 and 2022102205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2022102521) 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, 17136401 + ... + 17136518.

It is an arithmetic number, because the mean of its divisors is an integer number (514093800).

Almost surely, 22022102221 is an apocalyptic number.

It is an amenable number.

2022102221 is a deficient number, since it is larger than the sum of its proper divisors (34272979).

2022102221 is an equidigital number, since it uses as much as digits as its factorization.

2022102221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34272978.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 2022102221 is about 44967.7909286191. The cubic root of 2022102221 is about 1264.5452329596.

Adding to 2022102221 its reverse (1222012202), we get a palindrome (3244114423).

The spelling of 2022102221 in words is "two billion, twenty-two million, one hundred two thousand, two hundred twenty-one".

Divisors: 1 59 34272919 2022102221