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2232022221 = 32111313712659
BaseRepresentation
bin1000010100001001…
…1111010011001101
312202112221110212200
42011002133103031
514032344202341
61005251552113
7106211606262
oct20502372315
95675843780
102232022221
11a45a11370
125235bb639
13297563c10
14172615269
15d0e44db6
hex8509f4cd

2232022221 has 48 divisors (see below), whose sum is σ = 3815622720. Its totient is φ = 1239471360.

The previous prime is 2232022193. The next prime is 2232022237. The reversal of 2232022221 is 1222202322.

It is not a de Polignac number, because 2232022221 - 29 = 2232021709 is a prime.

It is a super-3 number, since 3×22320222213 (a number of 29 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2232022194 and 2232022203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2232022271) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 169990 + ... + 182648.

It is an arithmetic number, because the mean of its divisors is an integer number (79492140).

Almost surely, 22232022221 is an apocalyptic number.

It is an amenable number.

2232022221 is a deficient number, since it is larger than the sum of its proper divisors (1583600499).

2232022221 is a wasteful number, since it uses less digits than its factorization.

2232022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12826 (or 12823 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2232022221 is about 47244.2824159707. The cubic root of 2232022221 is about 1306.8713523045.

Adding to 2232022221 its reverse (1222202322), we get a palindrome (3454224543).

The spelling of 2232022221 in words is "two billion, two hundred thirty-two million, twenty-two thousand, two hundred twenty-one".

Divisors: 1 3 9 11 13 33 39 99 117 137 143 411 429 1233 1287 1507 1781 4521 5343 12659 13563 16029 19591 37977 58773 113931 139249 164567 176319 417747 493701 1253241 1481103 1734283 1810237 5202849 5430711 15608547 16292133 19077113 22545679 57231339 67637037 171694017 202911111 248002469 744007407 2232022221