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202241013221 = 13127701317467
BaseRepresentation
bin1011110001011010000…
…0001111010111100101
3201100000112010221201002
42330112200033113211
511303142144410341
6232524102443045
720416502151152
oct2742640172745
9640015127632
10202241013221
1178851863645
1233242133485
13160c06b05c0
149b07997229
1553da09329b
hex2f1680f5e5

202241013221 has 16 divisors (see below), whose sum is σ = 219556829184. Its totient is φ = 185177047104.

The previous prime is 202241013209. The next prime is 202241013269. The reversal of 202241013221 is 122310142202.

It is a cyclic number.

It is not a de Polignac number, because 202241013221 - 218 = 202240751077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202241013193 and 202241013202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202241012221) 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, 11569730 + ... + 11587196.

It is an arithmetic number, because the mean of its divisors is an integer number (13722301824).

Almost surely, 2202241013221 is an apocalyptic number.

It is an amenable number.

202241013221 is a deficient number, since it is larger than the sum of its proper divisors (17315815963).

202241013221 is a wasteful number, since it uses less digits than its factorization.

202241013221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24620.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 202241013221 its reverse (122310142202), we get a palindrome (324551155423).

The spelling of 202241013221 in words is "two hundred two billion, two hundred forty-one million, thirteen thousand, two hundred twenty-one".

Divisors: 1 13 127 1651 7013 17467 91169 227071 890651 2218309 11578463 28838017 122496071 1592448923 15557001017 202241013221