121213230120 has 96 divisors (see below), whose sum is σ = 411070982400. Its totient is φ = 30918155136.

The previous prime is 121213230067. The next prime is 121213230121. The reversal of 121213230120 is 21032312121.

121213230120 is a `hidden beast` number, since 1 + 212 + 132 + 301 + 20 = 666.

It is a super-2 number, since 2×121213230120² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 121213230093 and 121213230102.

It is not an unprimeable number, because it can be changed into a prime (121213230121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7311360 + ... + 7327919.

It is an arithmetic number, because the mean of its divisors is an integer number (4281989400).

Almost surely, 2^121213230120 is an apocalyptic number.

121213230120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121213230120 is an abundant number, since it is smaller than the sum of its proper divisors (289857752280).

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

121213230120 is a wasteful number, since it uses less digits than its factorization.

121213230120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14639319 (or 14639312 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 121213230120 its reverse (21032312121), we get a palindrome (142245542241).

The spelling of 121213230120 in words is "one hundred twenty-one billion, two hundred thirteen million, two hundred thirty thousand, one hundred twenty".