1212321222032 has 40 divisors (see below), whose sum is σ = 2350916317440. Its totient is φ = 605633383040.

The previous prime is 1212321222031. The next prime is 1212321222043. The reversal of 1212321222032 is 2302221232121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1212321221989 and 1212321222007.

It is not an unprimeable number, because it can be changed into a prime (1212321222031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 143823194 + ... + 143831622.

It is an arithmetic number, because the mean of its divisors is an integer number (58772907936).

Almost surely, 2^{1212321222032} is an apocalyptic number.

It is an amenable number.

1212321222032 is a deficient number, since it is larger than the sum of its proper divisors (1138595095408).

1212321222032 is a wasteful number, since it uses less digits than its factorization.

1212321222032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15191 (or 15185 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 1212321222032 its reverse (2302221232121), we get a palindrome (3514542454153).

The spelling of 1212321222032 in words is "one trillion, two hundred twelve billion, three hundred twenty-one million, two hundred twenty-two thousand, thirty-two".