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121020001201 = 1113780305243
BaseRepresentation
bin111000010110101011…
…0101010101110110001
3102120101002111001002201
41300231112222232301
53440322110014301
6131332410343201
711512663015561
oct1605526525661
9376332431081
10121020001201
11473626aa120
121b55542ab01
13b548608388
145c009bcda1
1532347d8201
hex1c2d5aabb1

121020001201 has 8 divisors (see below), whose sum is σ = 132985484064. Its totient is φ = 109215129120.

The previous prime is 121020001129. The next prime is 121020001229. The reversal of 121020001201 is 102100020121.

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 121020001201 - 235 = 86660262833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121020001261) 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, 40151115 + ... + 40154128.

It is an arithmetic number, because the mean of its divisors is an integer number (16623185508).

Almost surely, 2121020001201 is an apocalyptic number.

121020001201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121020001201 is a deficient number, since it is larger than the sum of its proper divisors (11965482863).

121020001201 is a wasteful number, since it uses less digits than its factorization.

121020001201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80305391.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 121020001201 its reverse (102100020121), we get a palindrome (223120021322).

The spelling of 121020001201 in words is "one hundred twenty-one billion, twenty million, one thousand, two hundred one".

Divisors: 1 11 137 1507 80305243 883357673 11001818291 121020001201