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102202100111021 is a prime number
BaseRepresentation
bin10111001111001111000111…
…110111110101011010101101
3111101212102111002011202110212
4113033033013313311122231
5101343434400112023041
61001210555134312205
730345600213223061
oct2717170767653255
9441772432152425
10102202100111021
112a6237381226a9
12b567550658665
134504802b25a11
141b3487265baa1
15bc37a02ab8eb
hex5cf3c7df56ad

102202100111021 has 2 divisors, whose sum is σ = 102202100111022. Its totient is φ = 102202100111020.

The previous prime is 102202100110949. The next prime is 102202100111029. The reversal of 102202100111021 is 120111001202201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76885715402500 + 25316384708521 = 8768450^2 + 5031539^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-102202100111021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102202100110987 and 102202100111005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102202100111029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51101050055510 + 51101050055511.

It is an arithmetic number, because the mean of its divisors is an integer number (51101050055511).

Almost surely, 2102202100111021 is an apocalyptic number.

It is an amenable number.

102202100111021 is a deficient number, since it is larger than the sum of its proper divisors (1).

102202100111021 is an equidigital number, since it uses as much as digits as its factorization.

102202100111021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 102202100111021 its reverse (120111001202201), we get a palindrome (222313101313222).

The spelling of 102202100111021 in words is "one hundred two trillion, two hundred two billion, one hundred million, one hundred eleven thousand, twenty-one".