144022121261 has 2 divisors, whose sum is σ = 144022121262. Its totient is φ = 144022121260.

The previous prime is 144022121237. The next prime is 144022121371. The reversal of 144022121261 is 162121220441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100812600100 + 43209521161 = 317510^2 + 207869^2 .

It is a cyclic number.

It is not a de Polignac number, because 144022121261 - 2¹⁰ = 144022120237 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 144022121261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (144022121161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72011060630 + 72011060631.

It is an arithmetic number, because the mean of its divisors is an integer number (72011060631).

Almost surely, 2^144022121261 is an apocalyptic number.

It is an amenable number.

144022121261 is a deficient number, since it is larger than the sum of its proper divisors (1).

144022121261 is an equidigital number, since it uses as much as digits as its factorization.

144022121261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 26.

The spelling of 144022121261 in words is "one hundred forty-four billion, twenty-two million, one hundred twenty-one thousand, two hundred sixty-one".