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122201111110961 is a prime number
BaseRepresentation
bin11011110010010000101001…
…110100011010010100110001
3121000200022102112122212002202
4123302100221310122110301
5112004120333421022321
61111522225422552545
734511511311006621
oct3362205164322461
9530608375585082
10122201111110961
1135a3422249a313
1211857488a38755
1353256912512cc
1422267cb3d2881
15e1dae83d570b
hex6f2429d1a531

122201111110961 has 2 divisors, whose sum is σ = 122201111110962. Its totient is φ = 122201111110960.

The previous prime is 122201111110943. The next prime is 122201111111029. The reversal of 122201111110961 is 169011111102221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122097527550625 + 103583560336 = 11049775^2 + 321844^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-122201111110961 is a prime.

It is a super-2 number, since 2×1222011111109612 (a number of 29 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (125201111110961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61100555555480 + 61100555555481.

It is an arithmetic number, because the mean of its divisors is an integer number (61100555555481).

Almost surely, 2122201111110961 is an apocalyptic number.

It is an amenable number.

122201111110961 is a deficient number, since it is larger than the sum of its proper divisors (1).

122201111110961 is an equidigital number, since it uses as much as digits as its factorization.

122201111110961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 29.

The spelling of 122201111110961 in words is "one hundred twenty-two trillion, two hundred one billion, one hundred eleven million, one hundred ten thousand, nine hundred sixty-one".