121032215634 has 32 divisors (see below), whose sum is σ = 264128394816. Its totient is φ = 36668358720.

The previous prime is 121032215597. The next prime is 121032215639. The reversal of 121032215634 is 436512230121.

It is not an unprimeable number, because it can be changed into a prime (121032215639) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103944 + ... + 502860.

It is an arithmetic number, because the mean of its divisors is an integer number (8254012338).

Almost surely, 2^121032215634 is an apocalyptic number.

121032215634 is an abundant number, since it is smaller than the sum of its proper divisors (143096179182).

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

121032215634 is a wasteful number, since it uses less digits than its factorization.

121032215634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403530.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 121032215634 its reverse (436512230121), we get a palindrome (557544445755).

The spelling of 121032215634 in words is "one hundred twenty-one billion, thirty-two million, two hundred fifteen thousand, six hundred thirty-four".