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202001330221 = 1947631358487
BaseRepresentation
bin1011110000100000110…
…1111011000000101101
3201022101211010210102221
42330020031323000231
511302144320031341
6232444221315341
720410531655665
oct2741015730055
9638354123387
10202001330221
1178739537219
1233195a05b51
1316082b40b42
149ac3c051a5
1553c3eeaed1
hex2f0837b02d

202001330221 has 16 divisors (see below), whose sum is σ = 217501839360. Its totient is φ = 187000637040.

The previous prime is 202001330203. The next prime is 202001330227. The reversal of 202001330221 is 122033100202.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-202001330221 is a prime.

It is a super-2 number, since 2×2020013302212 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202001330195 and 202001330204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202001330227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 384240 + ... + 742726.

It is an arithmetic number, because the mean of its divisors is an integer number (13593864960).

Almost surely, 2202001330221 is an apocalyptic number.

It is an amenable number.

202001330221 is a deficient number, since it is larger than the sum of its proper divisors (15500509139).

202001330221 is a wasteful number, since it uses less digits than its factorization.

202001330221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359184.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 202001330221 its reverse (122033100202), we get a palindrome (324034430423).

The spelling of 202001330221 in words is "two hundred two billion, one million, three hundred thirty thousand, two hundred twenty-one".

Divisors: 1 19 47 631 893 11989 29657 358487 563483 6811253 16848889 226205297 320128891 4297900643 10631648959 202001330221