1222111020149 has 2 divisors, whose sum is σ = 1222111020150. Its totient is φ = 1222111020148.

The previous prime is 1222111020071. The next prime is 1222111020253. The reversal of 1222111020149 is 9410201112221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 794224963249 + 427886056900 = 891193^2 + 654130^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222111020149 - 2¹² = 1222111016053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222111029149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611055510074 + 611055510075.

It is an arithmetic number, because the mean of its divisors is an integer number (611055510075).

Almost surely, 2^{1222111020149} is an apocalyptic number.

It is an amenable number.

1222111020149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222111020149 is an equidigital number, since it uses as much as digits as its factorization.

1222111020149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 26.

The spelling of 1222111020149 in words is "one trillion, two hundred twenty-two billion, one hundred eleven million, twenty thousand, one hundred forty-nine".