120221222002181 has 2 divisors, whose sum is σ = 120221222002182. Its totient is φ = 120221222002180.

The previous prime is 120221222002157. The next prime is 120221222002253. The reversal of 120221222002181 is 181200222122021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87706034522500 + 32515187479681 = 9365150^2 + 5702209^2 .

It is a cyclic number.

It is not a de Polignac number, because 120221222002181 - 2¹⁴ = 120221221985797 is a prime.

It is a super-2 number, since 2×120221222002181² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 120221222002181.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120221222002151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60110611001090 + 60110611001091.

It is an arithmetic number, because the mean of its divisors is an integer number (60110611001091).

Almost surely, 2^{120221222002181} is an apocalyptic number.

It is an amenable number.

120221222002181 is a deficient number, since it is larger than the sum of its proper divisors (1).

120221222002181 is an equidigital number, since it uses as much as digits as its factorization.

120221222002181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1024, while the sum is 26.

The spelling of 120221222002181 in words is "one hundred twenty trillion, two hundred twenty-one billion, two hundred twenty-two million, two thousand, one hundred eighty-one".