121221201032 has 16 divisors (see below), whose sum is σ = 228603568140. Its totient is φ = 60260249536.

The previous prime is 121221201029. The next prime is 121221201043. The reversal of 121221201032 is 230102122121.

It can be written as a sum of positive squares in 2 ways, for example, as 121044151396 + 177049636 = 347914^2 + 13306^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 121221201032.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43792403 + ... + 43795170.

Almost surely, 2^121221201032 is an apocalyptic number.

It is an amenable number.

121221201032 is a deficient number, since it is larger than the sum of its proper divisors (107382367108).

121221201032 is a wasteful number, since it uses less digits than its factorization.

121221201032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87587752 (or 87587748 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 121221201032 its reverse (230102122121), we get a palindrome (351323323153).

The spelling of 121221201032 in words is "one hundred twenty-one billion, two hundred twenty-one million, two hundred one thousand, thirty-two".