1221030323132 has 12 divisors (see below), whose sum is σ = 2136816625440. Its totient is φ = 610511287296.

The previous prime is 1221030323101. The next prime is 1221030323141. The reversal of 1221030323132 is 2313230301221.

It is a junction number, because it is equal to n+sod(n) for n = 1221030323098 and 1221030323107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189893 + ... + 1574204.

It is an arithmetic number, because the mean of its divisors is an integer number (178068052120).

Almost surely, 2^{1221030323132} is an apocalyptic number.

It is an amenable number.

1221030323132 is a deficient number, since it is larger than the sum of its proper divisors (915786302308).

1221030323132 is a wasteful number, since it uses less digits than its factorization.

1221030323132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1937140 (or 1937138 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 1221030323132 its reverse (2313230301221), we get a palindrome (3534260624353).

The spelling of 1221030323132 in words is "one trillion, two hundred twenty-one billion, thirty million, three hundred twenty-three thousand, one hundred thirty-two".