1222011222437 has 2 divisors, whose sum is σ = 1222011222438. Its totient is φ = 1222011222436.

The previous prime is 1222011222349. The next prime is 1222011222463. The reversal of 1222011222437 is 7342221102221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1165192872481 + 56818349956 = 1079441^2 + 238366^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222011222437 - 2²⁰ = 1222010173861 is a prime.

It is a super-2 number, since 2×1222011222437² (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 (1222011222137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611005611218 + 611005611219.

It is an arithmetic number, because the mean of its divisors is an integer number (611005611219).

Almost surely, 2^{1222011222437} is an apocalyptic number.

It is an amenable number.

1222011222437 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222011222437 is an equidigital number, since it uses as much as digits as its factorization.

1222011222437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 29.

Adding to 1222011222437 its reverse (7342221102221), we get a palindrome (8564232324658).

The spelling of 1222011222437 in words is "one trillion, two hundred twenty-two billion, eleven million, two hundred twenty-two thousand, four hundred thirty-seven".