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121210118016697 is a prime number
BaseRepresentation
bin11011100011110101101110…
…000001110000111010111001
3120220011120111112022122112001
4123203311232001300322321
5111341401310203013242
61105443054241421001
734350066501463153
oct3343655601607271
9526146445278461
10121210118016697
1135691a16751a76
12117173bb33a761
1352830accb30b8
15e02e47761eb7
hex6e3d6e070eb9

121210118016697 has 2 divisors, whose sum is σ = 121210118016698. Its totient is φ = 121210118016696.

The previous prime is 121210118016643. The next prime is 121210118016709. The reversal of 121210118016697 is 796610811012121.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 76776481803961 + 44433636212736 = 8762219^2 + 6665856^2 .

It is a cyclic number.

It is not a de Polignac number, because 121210118016697 - 235 = 121175758278329 is a prime.

It is a super-2 number, since 2×1212101180166972 (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (121210118016607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60605059008348 + 60605059008349.

It is an arithmetic number, because the mean of its divisors is an integer number (60605059008349).

Almost surely, 2121210118016697 is an apocalyptic number.

It is an amenable number.

121210118016697 is a deficient number, since it is larger than the sum of its proper divisors (1).

121210118016697 is an equidigital number, since it uses as much as digits as its factorization.

121210118016697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 46.

The spelling of 121210118016697 in words is "one hundred twenty-one trillion, two hundred ten billion, one hundred eighteen million, sixteen thousand, six hundred ninety-seven".