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122012011087 is a prime number
BaseRepresentation
bin111000110100001111…
…0111000101001001111
3102122221020010100211121
41301220132320221033
53444340033323322
6132015044501411
711546366660641
oct1615036705117
9378836110747
10122012011087
11478216658aa
121b7916aa867
13b675ca8785
145c9664a891
15329193bec7
hex1c687b8a4f

122012011087 has 2 divisors, whose sum is σ = 122012011088. Its totient is φ = 122012011086.

The previous prime is 122012011073. The next prime is 122012011111. The reversal of 122012011087 is 780110210221.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122012011087 - 211 = 122012009039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122012011027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61006005543 + 61006005544.

It is an arithmetic number, because the mean of its divisors is an integer number (61006005544).

Almost surely, 2122012011087 is an apocalyptic number.

122012011087 is a deficient number, since it is larger than the sum of its proper divisors (1).

122012011087 is an equidigital number, since it uses as much as digits as its factorization.

122012011087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 25.

The spelling of 122012011087 in words is "one hundred twenty-two billion, twelve million, eleven thousand, eighty-seven".