1221101000107 has 2 divisors, whose sum is σ = 1221101000108. Its totient is φ = 1221101000106.

The previous prime is 1221101000039. The next prime is 1221101000233. The reversal of 1221101000107 is 7010001011221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1221101000107 - 2¹¹ = 1221100998059 is a prime.

It is a super-2 number, since 2×1221101000107² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1221101006107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610550500053 + 610550500054.

It is an arithmetic number, because the mean of its divisors is an integer number (610550500054).

Almost surely, 2^{1221101000107} is an apocalyptic number.

1221101000107 is a deficient number, since it is larger than the sum of its proper divisors (1).

1221101000107 is an equidigital number, since it uses as much as digits as its factorization.

1221101000107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28, while the sum is 16.

Adding to 1221101000107 its reverse (7010001011221), we get a palindrome (8231102011328).

The spelling of 1221101000107 in words is "one trillion, two hundred twenty-one billion, one hundred one million, one hundred seven", and thus it is an aban number.