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221000201011012 = 2255250050252753
BaseRepresentation
bin110010001111111110011110…
…011110011111111101000100
31001222111102010222202101222111
4302033332132132133331010
5212431331402424323022
62102010031334310404
764356511000553413
oct6217763636377504
91058442128671874
10221000201011012
1164465728009885
12209533a01b8404
1396412ca38a977
143c80676c9147a
151a83ac8145477
hexc8ff9e79ff44

221000201011012 has 6 divisors (see below), whose sum is σ = 386750351769278. Its totient is φ = 110500100505504.

The previous prime is 221000201011001. The next prime is 221000201011013. The reversal of 221000201011012 is 210110102000122.

It can be written as a sum of positive squares in only one way, i.e., 133465015922436 + 87535185088576 = 11552706^2 + 9356024^2 .

It is a junction number, because it is equal to n+sod(n) for n = 221000201010983 and 221000201011001.

It is not an unprimeable number, because it can be changed into a prime (221000201011013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27625025126373 + ... + 27625025126380.

Almost surely, 2221000201011012 is an apocalyptic number.

It is an amenable number.

221000201011012 is a deficient number, since it is larger than the sum of its proper divisors (165750150758266).

221000201011012 is a wasteful number, since it uses less digits than its factorization.

221000201011012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55250050252757 (or 55250050252755 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 221000201011012 its reverse (210110102000122), we get a palindrome (431110303011134).

The spelling of 221000201011012 in words is "two hundred twenty-one trillion, two hundred one million, eleven thousand, twelve".

Divisors: 1 2 4 55250050252753 110500100505506 221000201011012