1212221110183 has 2 divisors, whose sum is σ = 1212221110184. Its totient is φ = 1212221110182.

The previous prime is 1212221110147. The next prime is 1212221110213. The reversal of 1212221110183 is 3810111222121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1212221110183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1212221110103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606110555091 + 606110555092.

It is an arithmetic number, because the mean of its divisors is an integer number (606110555092).

Almost surely, 2^{1212221110183} is an apocalyptic number.

1212221110183 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212221110183 is an equidigital number, since it uses as much as digits as its factorization.

1212221110183 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 25.

The spelling of 1212221110183 in words is "one trillion, two hundred twelve billion, two hundred twenty-one million, one hundred ten thousand, one hundred eighty-three".