Search a number
-
+
222221212102103 is a prime number
BaseRepresentation
bin110010100001101111101000…
…011010001010110111010111
31002010211010210100112112102212
4302201233220122022313113
5213111333020244231403
62104343003203424035
764543644536566664
oct6241575032126727
91063733710475385
10222221212102103
1164896539a33665
1220b0bb6238501b
1396cc4a7971846
143cc37c7a98a6b
151aa573c71e4d8
hexca1be868add7

222221212102103 has 2 divisors, whose sum is σ = 222221212102104. Its totient is φ = 222221212102102.

The previous prime is 222221212102091. The next prime is 222221212102157. The reversal of 222221212102103 is 301201212122222.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-222221212102103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222221112102103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111110606051051 + 111110606051052.

It is an arithmetic number, because the mean of its divisors is an integer number (111110606051052).

Almost surely, 2222221212102103 is an apocalyptic number.

222221212102103 is a deficient number, since it is larger than the sum of its proper divisors (1).

222221212102103 is an equidigital number, since it uses as much as digits as its factorization.

222221212102103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 222221212102103 its reverse (301201212122222), we get a palindrome (523422424224325).

The spelling of 222221212102103 in words is "two hundred twenty-two trillion, two hundred twenty-one billion, two hundred twelve million, one hundred two thousand, one hundred three".