Search a number
-
+
102121202102201 = 7871013128094871
BaseRepresentation
bin10111001110000011110001…
…111110011010111110111001
3111101120200200011022002221222
4113032003301332122332321
5101341123210214232301
61001105455501241425
730340004405415002
oct2716036176327671
9441520604262858
10102121202102201
112a5a23a4324277
12b553933b63275
1344c9cac943949
141b3099a5241a9
15bc161805631b
hex5ce0f1f9afb9

102121202102201 has 8 divisors (see below), whose sum is σ = 102351901763904. Its totient is φ = 101890758633840.

The previous prime is 102121202102197. The next prime is 102121202102209. The reversal of 102121202102201 is 102201202121201.

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 102121202102201 - 22 = 102121202102197 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102121202102201.

It is not an unprimeable number, because it can be changed into a prime (102121202102209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63250205 + ... + 64844666.

It is an arithmetic number, because the mean of its divisors is an integer number (12793987720488).

Almost surely, 2102121202102201 is an apocalyptic number.

It is an amenable number.

102121202102201 is a deficient number, since it is larger than the sum of its proper divisors (230699661703).

102121202102201 is a wasteful number, since it uses less digits than its factorization.

102121202102201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128096671.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 102121202102201 its reverse (102201202121201), we get a palindrome (204322404223402).

The spelling of 102121202102201 in words is "one hundred two trillion, one hundred twenty-one billion, two hundred two million, one hundred two thousand, two hundred one".

Divisors: 1 787 1013 797231 128094871 100810663477 129760104323 102121202102201