1022622401 has 2 divisors, whose sum is σ = 1022622402. Its totient is φ = 1022622400.

The previous prime is 1022622383. The next prime is 1022622449. The reversal of 1022622401 is 1042262201.

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., 818818225 + 203804176 = 28615^2 + 14276^2 .

It is a cyclic number.

It is not a de Polignac number, because 1022622401 - 2¹⁸ = 1022360257 is a prime.

It is not a weakly prime, because it can be changed into another prime (1022622901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511311200 + 511311201.

It is an arithmetic number, because the mean of its divisors is an integer number (511311201).

Almost surely, 2^1022622401 is an apocalyptic number.

It is an amenable number.

1022622401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022622401 is an equidigital number, since it uses as much as digits as its factorization.

1022622401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1022622401 is about 31978.4677712989. The cubic root of 1022622401 is about 1007.4846407238.

Adding to 1022622401 its reverse (1042262201), we get a palindrome (2064884602).

The spelling of 1022622401 in words is "one billion, twenty-two million, six hundred twenty-two thousand, four hundred one".