121011112122 has 32 divisors (see below), whose sum is σ = 250067503104. Its totient is φ = 38998638000.

The previous prime is 121011112063. The next prime is 121011112127. The reversal of 121011112122 is 221211110121.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (121011112127) 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 15 ways as a sum of consecutive naturals, for example, 114028 + ... + 504999.

It is an arithmetic number, because the mean of its divisors is an integer number (7814609472).

Almost surely, 2^121011112122 is an apocalyptic number.

121011112122 is an abundant number, since it is smaller than the sum of its proper divisors (129056390982).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121011112122 is a wasteful number, since it uses less digits than its factorization.

121011112122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620114.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 121011112122 its reverse (221211110121), we get a palindrome (342222222243).

The spelling of 121011112122 in words is "one hundred twenty-one billion, eleven million, one hundred twelve thousand, one hundred twenty-two".