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121202201201 = 181669625421
BaseRepresentation
bin111000011100000110…
…1101101001001110001
3102120211210022202111212
41300320031231021301
53441210230414301
6131402435445505
711520334466114
oct1607015551161
9376753282455
10121202201201
1147446534734
121b5a6456895
13b57729c723
145c1ac8a57b
1532457c84bb
hex1c3836d271

121202201201 has 4 divisors (see below), whose sum is σ = 121871826804. Its totient is φ = 120532575600.

The previous prime is 121202201173. The next prime is 121202201231. The reversal of 121202201201 is 102102202121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3113751601 + 118088449600 = 55801^2 + 343640^2 .

It is a cyclic number.

It is not a de Polignac number, because 121202201201 - 234 = 104022332017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121202201231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 334812530 + ... + 334812891.

It is an arithmetic number, because the mean of its divisors is an integer number (30467956701).

Almost surely, 2121202201201 is an apocalyptic number.

It is an amenable number.

121202201201 is a deficient number, since it is larger than the sum of its proper divisors (669625603).

121202201201 is an equidigital number, since it uses as much as digits as its factorization.

121202201201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669625602.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 121202201201 its reverse (102102202121), we get a palindrome (223304403322).

The spelling of 121202201201 in words is "one hundred twenty-one billion, two hundred two million, two hundred one thousand, two hundred one".

Divisors: 1 181 669625421 121202201201