1223121202841 has 2 divisors, whose sum is σ = 1223121202842. Its totient is φ = 1223121202840.

The previous prime is 1223121202777. The next prime is 1223121202843. The reversal of 1223121202841 is 1482021213221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 779298762841 + 443822440000 = 882779^2 + 666200^2 .

It is an emirp because it is prime and its reverse (1482021213221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1223121202841 - 2⁶ = 1223121202777 is a prime.

Together with 1223121202843, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1223121202843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611560601420 + 611560601421.

It is an arithmetic number, because the mean of its divisors is an integer number (611560601421).

Almost surely, 2^{1223121202841} is an apocalyptic number.

It is an amenable number.

1223121202841 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223121202841 is an equidigital number, since it uses as much as digits as its factorization.

1223121202841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 29.

The spelling of 1223121202841 in words is "one trillion, two hundred twenty-three billion, one hundred twenty-one million, two hundred two thousand, eight hundred forty-one".