1220210120312 has 8 divisors (see below), whose sum is σ = 2287893975600. Its totient is φ = 610105060152.

The previous prime is 1220210120303. The next prime is 1220210120329. The reversal of 1220210120312 is 2130210120221.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76263132512 + ... + 76263132527.

It is an arithmetic number, because the mean of its divisors is an integer number (285986746950).

Almost surely, 2^{1220210120312} is an apocalyptic number.

It is an amenable number.

1220210120312 is a deficient number, since it is larger than the sum of its proper divisors (1067683855288).

1220210120312 is a wasteful number, since it uses less digits than its factorization.

1220210120312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152526265045 (or 152526265041 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 1220210120312 its reverse (2130210120221), we get a palindrome (3350420240533).

Subtracting 1220210120312 from its reverse (2130210120221), we obtain a palindrome (909999999909).

The spelling of 1220210120312 in words is "one trillion, two hundred twenty billion, two hundred ten million, one hundred twenty thousand, three hundred twelve".