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2022331221 = 323159912101
BaseRepresentation
bin111100010001010…
…0101001101010101
312012221101001220100
41320202211031111
513120204044341
6532401324313
7101054350251
oct17042451525
95187331810
102022331221
1194860a419
12485336699
13262c958c1
1415282d261
15bc8243b6
hex788a5355

2022331221 has 24 divisors (see below), whose sum is σ = 3020659200. Its totient is φ = 1302444000.

The previous prime is 2022331219. The next prime is 2022331261. The reversal of 2022331221 is 1221332202.

It is not a de Polignac number, because 2022331221 - 21 = 2022331219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2022331194 and 2022331203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2022331261) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 161071 + ... + 173171.

It is an arithmetic number, because the mean of its divisors is an integer number (125860800).

Almost surely, 22022331221 is an apocalyptic number.

It is an amenable number.

2022331221 is a deficient number, since it is larger than the sum of its proper divisors (998327979).

2022331221 is a wasteful number, since it uses less digits than its factorization.

2022331221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12737 (or 12734 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2022331221 is about 44970.3371234862. The cubic root of 2022331221 is about 1264.5929670990.

Adding to 2022331221 its reverse (1221332202), we get a palindrome (3243663423).

The spelling of 2022331221 in words is "two billion, twenty-two million, three hundred thirty-one thousand, two hundred twenty-one".

Divisors: 1 3 9 31 93 279 599 1797 5391 12101 18569 36303 55707 108909 167121 375131 1125393 3376179 7248499 21745497 65236491 224703469 674110407 2022331221