121211112220183 has 2 divisors, whose sum is σ = 121211112220184. Its totient is φ = 121211112220182.

The previous prime is 121211112220103. The next prime is 121211112220213. The reversal of 121211112220183 is 381022211112121.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (381022211112121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121211112220183 - 2³³ = 121202522285591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121211112220103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60605556110091 + 60605556110092.

It is an arithmetic number, because the mean of its divisors is an integer number (60605556110092).

Almost surely, 2^{121211112220183} is an apocalyptic number.

121211112220183 is a deficient number, since it is larger than the sum of its proper divisors (1).

121211112220183 is an equidigital number, since it uses as much as digits as its factorization.

121211112220183 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 768, while the sum is 28.

The spelling of 121211112220183 in words is "one hundred twenty-one trillion, two hundred eleven billion, one hundred twelve million, two hundred twenty thousand, one hundred eighty-three".