1230212120 has 32 divisors (see below), whose sum is σ = 2771398800. Its totient is φ = 491476608.

The previous prime is 1230212107. The next prime is 1230212131. The reversal of 1230212120 is 212120321.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1230212095 and 1230212104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14486 + ... + 51674.

Almost surely, 2^1230212120 is an apocalyptic number.

1230212120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230212120 is an abundant number, since it is smaller than the sum of its proper divisors (1541186680).

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

1230212120 is a wasteful number, since it uses less digits than its factorization.

1230212120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38027 (or 38023 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1230212120 is about 35074.3798234552. The cubic root of 1230212120 is about 1071.5028580535.

Adding to 1230212120 its reverse (212120321), we get a palindrome (1442332441).

The spelling of 1230212120 in words is "one billion, two hundred thirty million, two hundred twelve thousand, one hundred twenty".