121123123022 has 16 divisors (see below), whose sum is σ = 198955101312. Its totient is φ = 54846624120.

The previous prime is 121123123021. The next prime is 121123123049. The reversal of 121123123022 is 220321321121.

It is a junction number, because it is equal to n+sod(n) for n = 121123122985 and 121123123003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121123123021) 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 7 ways as a sum of consecutive naturals, for example, 10461128 + ... + 10472699.

It is an arithmetic number, because the mean of its divisors is an integer number (12434693832).

Almost surely, 2^121123123022 is an apocalyptic number.

121123123022 is a deficient number, since it is larger than the sum of its proper divisors (77831978290).

121123123022 is a wasteful number, since it uses less digits than its factorization.

121123123022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20934103.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 121123123022 its reverse (220321321121), we get a palindrome (341444444143).

The spelling of 121123123022 in words is "one hundred twenty-one billion, one hundred twenty-three million, one hundred twenty-three thousand, twenty-two".