121611632 has 10 divisors (see below), whose sum is σ = 235622568. Its totient is φ = 60805808.

The previous prime is 121611631. The next prime is 121611641. The reversal of 121611632 is 236116121.

It is a junction number, because it is equal to n+sod(n) for n = 121611598 and 121611607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121611631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3800348 + ... + 3800379.

Almost surely, 2^121611632 is an apocalyptic number.

It is an amenable number.

121611632 is a deficient number, since it is larger than the sum of its proper divisors (114010936).

121611632 is an equidigital number, since it uses as much as digits as its factorization.

121611632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7600735 (or 7600729 counting only the distinct ones).

The product of its digits is 432, while the sum is 23.

The square root of 121611632 is about 11027.7664102936. The cubic root of 121611632 is about 495.4407284504.

Adding to 121611632 its reverse (236116121), we get a palindrome (357727753).

The spelling of 121611632 in words is "one hundred twenty-one million, six hundred eleven thousand, six hundred thirty-two".