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121020202201 = 436146138087
BaseRepresentation
bin111000010110101011…
…1011011110011011001
3102120101002212020211011
41300231113123303121
53440322132432301
6131332414533521
711512664513563
oct1605527336331
9376332766734
10121020202201
1147362827138
121b5555072a1
13b548678a02
145c00a32333
153234827a51
hex1c2d5dbcd9

121020202201 has 8 divisors (see below), whose sum is σ = 125864704064. Its totient is φ = 116267976720.

The previous prime is 121020202187. The next prime is 121020202223. The reversal of 121020202201 is 102202020121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121020202201 - 25 = 121020202169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121020208201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23066421 + ... + 23071666.

It is an arithmetic number, because the mean of its divisors is an integer number (15733088008).

Almost surely, 2121020202201 is an apocalyptic number.

It is an amenable number.

121020202201 is a deficient number, since it is larger than the sum of its proper divisors (4844501863).

121020202201 is an equidigital number, since it uses as much as digits as its factorization.

121020202201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46138191.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 121020202201 its reverse (102202020121), we get a palindrome (223222222322).

The spelling of 121020202201 in words is "one hundred twenty-one billion, twenty million, two hundred two thousand, two hundred one".

Divisors: 1 43 61 2623 46138087 1983937741 2814423307 121020202201