221222041037 has 2 divisors, whose sum is σ = 221222041038. Its totient is φ = 221222041036.

The previous prime is 221222040973. The next prime is 221222041043. The reversal of 221222041037 is 730140222122.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 180887745481 + 40334295556 = 425309^2 + 200834^2 .

It is a cyclic number.

It is not a de Polignac number, because 221222041037 - 2⁶ = 221222040973 is a prime.

It is a super-2 number, since 2×221222041037² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 221222040997 and 221222041015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221222041637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110611020518 + 110611020519.

It is an arithmetic number, because the mean of its divisors is an integer number (110611020519).

Almost surely, 2^221222041037 is an apocalyptic number.

It is an amenable number.

221222041037 is a deficient number, since it is larger than the sum of its proper divisors (1).

221222041037 is an equidigital number, since it uses as much as digits as its factorization.

221222041037 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 26.

Adding to 221222041037 its reverse (730140222122), we get a palindrome (951362263159).

The spelling of 221222041037 in words is "two hundred twenty-one billion, two hundred twenty-two million, forty-one thousand, thirty-seven".