121221031321132 has 48 divisors (see below), whose sum is σ = 217728269498880. Its totient is φ = 59033372188032.

The previous prime is 121221031321109. The next prime is 121221031321151. The reversal of 121221031321132 is 231123130122121.

It is a super-2 number, since 2×121221031321132² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121221031321097 and 121221031321106.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1679693313 + ... + 1679765479.

It is an arithmetic number, because the mean of its divisors is an integer number (4536005614560).

Almost surely, 2^{121221031321132} is an apocalyptic number.

It is an amenable number.

121221031321132 is a deficient number, since it is larger than the sum of its proper divisors (96507238177748).

121221031321132 is a wasteful number, since it uses less digits than its factorization.

121221031321132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142750 (or 142748 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 121221031321132 its reverse (231123130122121), we get a palindrome (352344161443253).

The spelling of 121221031321132 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, thirty-one million, three hundred twenty-one thousand, one hundred thirty-two".