1212000210120 has 128 divisors (see below), whose sum is σ = 4173264426240. Its totient is φ = 275839610880.

The previous prime is 1212000210089. The next prime is 1212000210133. The reversal of 1212000210120 is 210120002121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1212000210096 and 1212000210105.

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, 2900541 + ... + 3291980.

It is an arithmetic number, because the mean of its divisors is an integer number (32603628330).

Almost surely, 2^{1212000210120} is an apocalyptic number.

1212000210120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1212000210120 is an abundant number, since it is smaller than the sum of its proper divisors (2961264216120).

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

1212000210120 is a wasteful number, since it uses less digits than its factorization.

1212000210120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6192775 (or 6192771 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1212000210120 its reverse (210120002121), we get a palindrome (1422120212241).

It can be divided in two parts, 12120002101 and 20, that added together give a palindrome (12120002121).

The spelling of 1212000210120 in words is "one trillion, two hundred twelve billion, two hundred ten thousand, one hundred twenty".