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102220102121 = 1571163559831
BaseRepresentation
bin101111100110011001…
…0101111100111101001
3100202211220011012211012
41133030302233213221
53133321321231441
6114543111313305
710246052350304
oct1371462574751
9322756135735
10102220102121
113a395645745
121798937b835
13984075bb37
144d39c51b3b
1529d40c79eb
hex17cccaf9e9

102220102121 has 8 divisors (see below), whose sum is σ = 102959822784. Its totient is φ = 101481503760.

The previous prime is 102220102093. The next prime is 102220102129. The reversal of 102220102121 is 121201022201.

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 102220102121 - 210 = 102220101097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102220102096 and 102220102105.

It is not an unprimeable number, because it can be changed into a prime (102220102129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97325 + ... + 462506.

It is an arithmetic number, because the mean of its divisors is an integer number (12869977848).

Almost surely, 2102220102121 is an apocalyptic number.

It is an amenable number.

102220102121 is a deficient number, since it is larger than the sum of its proper divisors (739720663).

102220102121 is a wasteful number, since it uses less digits than its factorization.

102220102121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561151.

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

Adding to 102220102121 its reverse (121201022201), we get a palindrome (223421124322).

The spelling of 102220102121 in words is "one hundred two billion, two hundred twenty million, one hundred two thousand, one hundred twenty-one".

Divisors: 1 157 1163 182591 559831 87893467 651083453 102220102121