121122111020120 has 64 divisors (see below), whose sum is σ = 311524260552000. Its totient is φ = 41518593768960.

The previous prime is 121122111020117. The next prime is 121122111020123. The reversal of 121122111020120 is 21020111221121.

It is an interprime number because it is at equal distance from previous prime (121122111020117) and next prime (121122111020123).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121122111020123) 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 15 ways as a sum of consecutive naturals, for example, 45511895 + ... + 48099654.

It is an arithmetic number, because the mean of its divisors is an integer number (4867566571125).

Almost surely, 2^{121122111020120} is an apocalyptic number.

121122111020120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121122111020120 is an abundant number, since it is smaller than the sum of its proper divisors (190402149531880).

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

121122111020120 is a wasteful number, since it uses less digits than its factorization.

121122111020120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93616188 (or 93616184 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 121122111020120 its reverse (21020111221121), we get a palindrome (142142222241241).

The spelling of 121122111020120 in words is "one hundred twenty-one trillion, one hundred twenty-two billion, one hundred eleven million, twenty thousand, one hundred twenty".