12202354542 has 128 divisors (see below), whose sum is σ = 30059403264. Its totient is φ = 3226341888.

The previous prime is 12202354513. The next prime is 12202354547. The reversal of 12202354542 is 24545320221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12202354547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7040308 + ... + 7042040.

It is an arithmetic number, because the mean of its divisors is an integer number (234839088).

Almost surely, 2^12202354542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12202354542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15029701632).

12202354542 is an abundant number, since it is smaller than the sum of its proper divisors (17857048722).

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

12202354542 is a wasteful number, since it uses less digits than its factorization.

12202354542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2002.

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 12202354542 its reverse (24545320221), we get a palindrome (36747674763).

The spelling of 12202354542 in words is "twelve billion, two hundred two million, three hundred fifty-four thousand, five hundred forty-two".