1202220123312 has 160 divisors (see below), whose sum is σ = 3575182173696. Its totient is φ = 345200486400.

The previous prime is 1202220123301. The next prime is 1202220123347. The reversal of 1202220123312 is 2133210222021.

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, 433114 + ... + 1609977.

Almost surely, 2^{1202220123312} is an apocalyptic number.

1202220123312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1202220123312 is an abundant number, since it is smaller than the sum of its proper divisors (2372962050384).

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

1202220123312 is a wasteful number, since it uses less digits than its factorization.

1202220123312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2043179 (or 2043173 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 1202220123312 its reverse (2133210222021), we get a palindrome (3335430345333).

The spelling of 1202220123312 in words is "one trillion, two hundred two billion, two hundred twenty million, one hundred twenty-three thousand, three hundred twelve".