1001222121967 has 2 divisors, whose sum is σ = 1001222121968. Its totient is φ = 1001222121966.

The previous prime is 1001222121943. The next prime is 1001222121971. The reversal of 1001222121967 is 7691212221001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1001222121967 - 2¹⁹ = 1001221597679 is a prime.

It is a super-2 number, since 2×1001222121967² (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 (1001222121937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500611060983 + 500611060984.

It is an arithmetic number, because the mean of its divisors is an integer number (500611060984).

Almost surely, 2^{1001222121967} is an apocalyptic number.

1001222121967 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001222121967 is an equidigital number, since it uses as much as digits as its factorization.

1001222121967 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 34.

Adding to 1001222121967 its reverse (7691212221001), we get a palindrome (8692434342968).

The spelling of 1001222121967 in words is "one trillion, one billion, two hundred twenty-two million, one hundred twenty-one thousand, nine hundred sixty-seven".