122012001121 has 4 divisors (see below), whose sum is σ = 124080001200. Its totient is φ = 119944001044.

The previous prime is 122012001103. The next prime is 122012001143. The reversal of 122012001121 is 121100210221.

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: 121100210221 = 673 ⋅179940877.

It is a cyclic number.

It is not a de Polignac number, because 122012001121 - 2¹⁹ = 122011476833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122012001151) 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 in 3 ways as a sum of consecutive naturals, for example, 1033999951 + ... + 1034000068.

It is an arithmetic number, because the mean of its divisors is an integer number (31020000300).

Almost surely, 2^122012001121 is an apocalyptic number.

It is an amenable number.

122012001121 is a deficient number, since it is larger than the sum of its proper divisors (2068000079).

122012001121 is an equidigital number, since it uses as much as digits as its factorization.

122012001121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2068000078.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 122012001121 its reverse (121100210221), we get a palindrome (243112211342).

The spelling of 122012001121 in words is "one hundred twenty-two billion, twelve million, one thousand, one hundred twenty-one".