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120122220061 is a prime number
BaseRepresentation
bin110111111011111010…
…1111001111000011101
3102111001112011000220101
41233313311321320131
53432002242020221
6131103340021101
711451512011054
oct1576765717035
9374045130811
10120122220061
1146a41952938
121b344831791
13b43460a92c
145b5767d39b
1531d0a98d91
hex1bf7d79e1d

120122220061 has 2 divisors, whose sum is σ = 120122220062. Its totient is φ = 120122220060.

The previous prime is 120122220059. The next prime is 120122220067. The reversal of 120122220061 is 160022221021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107918820100 + 12203399961 = 328510^2 + 110469^2 .

It is a cyclic number.

It is not a de Polignac number, because 120122220061 - 21 = 120122220059 is a prime.

Together with 120122220059, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120122220067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60061110030 + 60061110031.

It is an arithmetic number, because the mean of its divisors is an integer number (60061110031).

Almost surely, 2120122220061 is an apocalyptic number.

It is an amenable number.

120122220061 is a deficient number, since it is larger than the sum of its proper divisors (1).

120122220061 is an equidigital number, since it uses as much as digits as its factorization.

120122220061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 120122220061 its reverse (160022221021), we get a palindrome (280144441082).

The spelling of 120122220061 in words is "one hundred twenty billion, one hundred twenty-two million, two hundred twenty thousand, sixty-one".