12205121062542 has 16 divisors (see below), whose sum is σ = 24410618383872. Its totient is φ = 4068310977720.

The previous prime is 12205121062507. The next prime is 12205121062559. The reversal of 12205121062542 is 24526012150221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15254878 + ... + 16035009.

It is an arithmetic number, because the mean of its divisors is an integer number (1525663648992).

Almost surely, 2^{12205121062542} is an apocalyptic number.

12205121062542 is an abundant number, since it is smaller than the sum of its proper divisors (12205497321330).

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

12205121062542 is a wasteful number, since it uses less digits than its factorization.

12205121062542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31354903.

The product of its (nonzero) digits is 19200, while the sum is 33.

The spelling of 12205121062542 in words is "twelve trillion, two hundred five billion, one hundred twenty-one million, sixty-two thousand, five hundred forty-two".