1222100041 has 2 divisors, whose sum is σ = 1222100042. Its totient is φ = 1222100040.

The previous prime is 1222100039. The next prime is 1222100071. The reversal of 1222100041 is 1400012221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1095874816 + 126225225 = 33104^2 + 11235^2 .

It is an emirp because it is prime and its reverse (1400012221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1222100041 - 2¹ = 1222100039 is a prime.

Together with 1222100039, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1222099994 and 1222100030.

It is not a weakly prime, because it can be changed into another prime (1222100071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611050020 + 611050021.

It is an arithmetic number, because the mean of its divisors is an integer number (611050021).

Almost surely, 2^1222100041 is an apocalyptic number.

It is an amenable number.

1222100041 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222100041 is an equidigital number, since it uses as much as digits as its factorization.

1222100041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1222100041 is about 34958.5474669644. The cubic root of 1222100041 is about 1069.1424814964.

Adding to 1222100041 its reverse (1400012221), we get a palindrome (2622112262).

The spelling of 1222100041 in words is "one billion, two hundred twenty-two million, one hundred thousand, forty-one".