1222312443061 has 2 divisors, whose sum is σ = 1222312443062. Its totient is φ = 1222312443060.

The previous prime is 1222312443029. The next prime is 1222312443071. The reversal of 1222312443061 is 1603442132221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1131045012036 + 91267431025 = 1063506^2 + 302105^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222312443061 - 2⁵ = 1222312443029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222312443071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611156221530 + 611156221531.

It is an arithmetic number, because the mean of its divisors is an integer number (611156221531).

Almost surely, 2^{1222312443061} is an apocalyptic number.

It is an amenable number.

1222312443061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222312443061 is an equidigital number, since it uses as much as digits as its factorization.

1222312443061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 1222312443061 its reverse (1603442132221), we get a palindrome (2825754575282).

The spelling of 1222312443061 in words is "one trillion, two hundred twenty-two billion, three hundred twelve million, four hundred forty-three thousand, sixty-one".