1221242434232 has 8 divisors (see below), whose sum is σ = 2289829564200. Its totient is φ = 610621217112.

The previous prime is 1221242434219. The next prime is 1221242434241. The reversal of 1221242434232 is 2324342421221.

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, 76327652132 + ... + 76327652147.

It is an arithmetic number, because the mean of its divisors is an integer number (286228695525).

Almost surely, 2^{1221242434232} is an apocalyptic number.

It is an amenable number.

1221242434232 is a deficient number, since it is larger than the sum of its proper divisors (1068587129968).

1221242434232 is a wasteful number, since it uses less digits than its factorization.

1221242434232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152655304285 (or 152655304281 counting only the distinct ones).

The product of its digits is 36864, while the sum is 32.

Adding to 1221242434232 its reverse (2324342421221), we get a palindrome (3545584855453).

The spelling of 1221242434232 in words is "one trillion, two hundred twenty-one billion, two hundred forty-two million, four hundred thirty-four thousand, two hundred thirty-two".