1220410021312 has 28 divisors (see below), whose sum is σ = 2427790466736. Its totient is φ = 608683289600.

The previous prime is 1220410021301. The next prime is 1220410021361. The reversal of 1220410021312 is 2131200140221.

It is a self number, because there is not a number n which added to its sum of digits gives 1220410021312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23751028 + ... + 23802355.

Almost surely, 2^{1220410021312} is an apocalyptic number.

It is an amenable number.

1220410021312 is a deficient number, since it is larger than the sum of its proper divisors (1207380445424).

1220410021312 is an equidigital number, since it uses as much as digits as its factorization.

1220410021312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47553796 (or 47553786 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 1220410021312 its reverse (2131200140221), we get a palindrome (3351610161533).

The spelling of 1220410021312 in words is "one trillion, two hundred twenty billion, four hundred ten million, twenty-one thousand, three hundred twelve".