121210121120 has 48 divisors (see below), whose sum is σ = 312391543968. Its totient is φ = 44076407040.

The previous prime is 121210121119. The next prime is 121210121143. The reversal of 121210121120 is 21121012121.

It is a junction number, because it is equal to n+sod(n) for n = 121210121095 and 121210121104.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 34432934 + ... + 34436453.

It is an arithmetic number, because the mean of its divisors is an integer number (6508157166).

Almost surely, 2^121210121120 is an apocalyptic number.

121210121120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121210121120 is an abundant number, since it is smaller than the sum of its proper divisors (191181422848).

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

121210121120 is a wasteful number, since it uses less digits than its factorization.

121210121120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68869413 (or 68869405 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121210121120 its reverse (21121012121), we get a palindrome (142331133241).

The spelling of 121210121120 in words is "one hundred twenty-one billion, two hundred ten million, one hundred twenty-one thousand, one hundred twenty".