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102221011101071 is a prime number
BaseRepresentation
bin10111001111100000101111…
…000011100010010110001111
3111101221020022000112120220202
4113033200233003202112033
5101344242112320213241
61001223403442404115
730350136643045622
oct2717405703422617
9441836260476822
10102221011101071
112a6307619633a5
12b56b14996063b
1345065279ca065
141b35748065db9
15bc400a612d9b
hex5cf82f0e258f

102221011101071 has 2 divisors, whose sum is σ = 102221011101072. Its totient is φ = 102221011101070.

The previous prime is 102221011101059. The next prime is 102221011101091. The reversal of 102221011101071 is 170101110122201.

It is a happy number.

It is an a-pointer prime, because the next prime (102221011101091) can be obtained adding 102221011101071 to its sum of digits (20).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-102221011101071 is a prime.

It is a super-2 number, since 2×1022210111010712 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102221011101091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51110505550535 + 51110505550536.

It is an arithmetic number, because the mean of its divisors is an integer number (51110505550536).

Almost surely, 2102221011101071 is an apocalyptic number.

102221011101071 is a deficient number, since it is larger than the sum of its proper divisors (1).

102221011101071 is an equidigital number, since it uses as much as digits as its factorization.

102221011101071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56, while the sum is 20.

Adding to 102221011101071 its reverse (170101110122201), we get a palindrome (272322121223272).

The spelling of 102221011101071 in words is "one hundred two trillion, two hundred twenty-one billion, eleven million, one hundred one thousand, seventy-one".