121122000001 has 4 divisors (see below), whose sum is σ = 121139670852. Its totient is φ = 121104329152.

The previous prime is 121121999951. The next prime is 121122000007. The reversal of 121122000001 is 100000221121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100000221121 = 1523 ⋅65660027.

It can be written as a sum of positive squares in 2 ways, for example, as 23980071025 + 97141928976 = 154855^2 + 311676^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121122000001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121122000007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8825140 + ... + 8838853.

It is an arithmetic number, because the mean of its divisors is an integer number (30284917713).

Almost surely, 2^121122000001 is an apocalyptic number.

It is an amenable number.

121122000001 is a deficient number, since it is larger than the sum of its proper divisors (17670851).

121122000001 is an equidigital number, since it uses as much as digits as its factorization.

121122000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17670850.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 121122000001 its reverse (100000221121), we get a palindrome (221122221122).

The spelling of 121122000001 in words is "one hundred twenty-one billion, one hundred twenty-two million, one", and thus it is an aban number.