1210022110181 has 2 divisors, whose sum is σ = 1210022110182. Its totient is φ = 1210022110180.

The previous prime is 1210022110169. The next prime is 1210022110189. The reversal of 1210022110181 is 1810112200121.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 675463721956 + 534558388225 = 821866^2 + 731135^2 .

It is an emirp because it is prime and its reverse (1810112200121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1210022110181 - 2²² = 1210017915877 is a prime.

It is a super-2 number, since 2×1210022110181² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1210022110189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605011055090 + 605011055091.

It is an arithmetic number, because the mean of its divisors is an integer number (605011055091).

Almost surely, 2^{1210022110181} is an apocalyptic number.

It is an amenable number.

1210022110181 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210022110181 is an equidigital number, since it uses as much as digits as its factorization.

1210022110181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 20.

The spelling of 1210022110181 in words is "one trillion, two hundred ten billion, twenty-two million, one hundred ten thousand, one hundred eighty-one".