1211010122219 has 2 divisors, whose sum is σ = 1211010122220. Its totient is φ = 1211010122218.

The previous prime is 1211010122177. The next prime is 1211010122239. The reversal of 1211010122219 is 9122210101121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1211010122219 is a prime.

It is a super-2 number, since 2×1211010122219² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1211010122194 and 1211010122203.

It is not a weakly prime, because it can be changed into another prime (1211010122239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605505061109 + 605505061110.

It is an arithmetic number, because the mean of its divisors is an integer number (605505061110).

Almost surely, 2^{1211010122219} is an apocalyptic number.

1211010122219 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211010122219 is an equidigital number, since it uses as much as digits as its factorization.

1211010122219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 23.

The spelling of 1211010122219 in words is "one trillion, two hundred eleven billion, ten million, one hundred twenty-two thousand, two hundred nineteen".