1230212112120 has 128 divisors (see below), whose sum is σ = 4341925166400. Its totient is φ = 308759113728.

The previous prime is 1230212112079. The next prime is 1230212112131. The reversal of 1230212112120 is 212112120321.

1230212112120 is a `hidden beast` number, since 1 + 230 + 212 + 11 + 212 + 0 = 666.

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 = 1230212112093 and 1230212112102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33484149 + ... + 33520868.

Almost surely, 2^{1230212112120} is an apocalyptic number.

1230212112120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230212112120 is an abundant number, since it is smaller than the sum of its proper divisors (3111713054280).

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

1230212112120 is a wasteful number, since it uses less digits than its factorization.

1230212112120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67005054 (or 67005044 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 1230212112120 its reverse (212112120321), we get a palindrome (1442324232441).

The spelling of 1230212112120 in words is "one trillion, two hundred thirty billion, two hundred twelve million, one hundred twelve thousand, one hundred twenty".