1222122000181 has 2 divisors, whose sum is σ = 1222122000182. Its totient is φ = 1222122000180.

The previous prime is 1222122000179. The next prime is 1222122000217. The reversal of 1222122000181 is 1810002212221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1210019800081 + 12102200100 = 1100009^2 + 110010^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222122000181 - 2¹ = 1222122000179 is a prime.

It is a super-2 number, since 2×1222122000181² (a number of 25 digits) contains 22 as substring.

Together with 1222122000179, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222122000581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611061000090 + 611061000091.

It is an arithmetic number, because the mean of its divisors is an integer number (611061000091).

Almost surely, 2^{1222122000181} is an apocalyptic number.

It is an amenable number.

1222122000181 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222122000181 is an equidigital number, since it uses as much as digits as its factorization.

1222122000181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 22.

The spelling of 1222122000181 in words is "one trillion, two hundred twenty-two billion, one hundred twenty-two million, one hundred eighty-one", and thus it is an aban number.