121121120122 has 16 divisors (see below), whose sum is σ = 182415297600. Its totient is φ = 60316492320.

The previous prime is 121121120041. The next prime is 121121120161. The reversal of 121121120122 is 221021121121.

It is a junction number, because it is equal to n+sod(n) for n = 121121120096 and 121121120105.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 398829 + ... + 633487.

It is an arithmetic number, because the mean of its divisors is an integer number (11400956100).

Almost surely, 2^121121120122 is an apocalyptic number.

121121120122 is a deficient number, since it is larger than the sum of its proper divisors (61294177478).

121121120122 is a wasteful number, since it uses less digits than its factorization.

121121120122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235701.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121121120122 its reverse (221021121121), we get a palindrome (342142241243).

Subtracting 121121120122 from its reverse (221021121121), we obtain a palindrome (99900000999).

The spelling of 121121120122 in words is "one hundred twenty-one billion, one hundred twenty-one million, one hundred twenty thousand, one hundred twenty-two".