122203012121 has 4 divisors (see below), whose sum is σ = 123012303744. Its totient is φ = 121393720500.

The previous prime is 122203012079. The next prime is 122203012163. The reversal of 122203012121 is 121210302221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 121210302221 = 83 ⋅1460365087.

It is an interprime number because it is at equal distance from previous prime (122203012079) and next prime (122203012163).

It is a cyclic number.

It is not a de Polignac number, because 122203012121 - 2³⁴ = 105023142937 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 122203012121.

It is not an unprimeable number, because it can be changed into a prime (122283012121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404645585 + ... + 404645886.

It is an arithmetic number, because the mean of its divisors is an integer number (30753075936).

Almost surely, 2^122203012121 is an apocalyptic number.

It is an amenable number.

122203012121 is a deficient number, since it is larger than the sum of its proper divisors (809291623).

122203012121 is an equidigital number, since it uses as much as digits as its factorization.

122203012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 809291622.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 122203012121 its reverse (121210302221), we get a palindrome (243413314342).

The spelling of 122203012121 in words is "one hundred twenty-two billion, two hundred three million, twelve thousand, one hundred twenty-one".