1204421220312 has 32 divisors (see below), whose sum is σ = 3034762137600. Its totient is φ = 398312528544.

The previous prime is 1204421220263. The next prime is 1204421220323. The reversal of 1204421220312 is 2130221244021.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 197572612 + ... + 197578707.

It is an arithmetic number, because the mean of its divisors is an integer number (94836316800).

Almost surely, 2^{1204421220312} is an apocalyptic number.

1204421220312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1204421220312 is an abundant number, since it is smaller than the sum of its proper divisors (1830340917288).

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

1204421220312 is a wasteful number, since it uses less digits than its factorization.

1204421220312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395151455 (or 395151451 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 1204421220312 its reverse (2130221244021), we get a palindrome (3334642464333).

The spelling of 1204421220312 in words is "one trillion, two hundred four billion, four hundred twenty-one million, two hundred twenty thousand, three hundred twelve".