1101220121207 has 2 divisors, whose sum is σ = 1101220121208. Its totient is φ = 1101220121206.

The previous prime is 1101220121189. The next prime is 1101220121249. The reversal of 1101220121207 is 7021210221011.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1101220121207 - 2¹⁰ = 1101220120183 is a prime.

It is a super-2 number, since 2×1101220121207² (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 (1101220121107) 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, 550610060603 + 550610060604.

It is an arithmetic number, because the mean of its divisors is an integer number (550610060604).

Almost surely, 2^{1101220121207} is an apocalyptic number.

1101220121207 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101220121207 is an equidigital number, since it uses as much as digits as its factorization.

1101220121207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 20.

Adding to 1101220121207 its reverse (7021210221011), we get a palindrome (8122430342218).

The spelling of 1101220121207 in words is "one trillion, one hundred one billion, two hundred twenty million, one hundred twenty-one thousand, two hundred seven".