1221034222032 has 20 divisors (see below), whose sum is σ = 3154338407040. Its totient is φ = 407011407328.

The previous prime is 1221034221997. The next prime is 1221034222039. The reversal of 1221034222032 is 2302224301221.

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

It is a junction number, because it is equal to n+sod(n) for n = 1221034221993 and 1221034222011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1221034222039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12719106432 + ... + 12719106527.

It is an arithmetic number, because the mean of its divisors is an integer number (157716920352).

Almost surely, 2^{1221034222032} is an apocalyptic number.

1221034222032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1221034222032 is an abundant number, since it is smaller than the sum of its proper divisors (1933304185008).

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

1221034222032 is a wasteful number, since it uses less digits than its factorization.

1221034222032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25438212970 (or 25438212964 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 1221034222032 its reverse (2302224301221), we get a palindrome (3523258523253).

The spelling of 1221034222032 in words is "one trillion, two hundred twenty-one billion, thirty-four million, two hundred twenty-two thousand, thirty-two".