102541222542 has 64 divisors (see below), whose sum is σ = 230388390144. Its totient is φ = 30157021440.

The previous prime is 102541222457. The next prime is 102541222547. The reversal of 102541222542 is 245222145201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102541222547) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 330498 + ... + 560634.

It is an arithmetic number, because the mean of its divisors is an integer number (3599818596).

Almost surely, 2^102541222542 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102541222542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115194195072).

102541222542 is an abundant number, since it is smaller than the sum of its proper divisors (127847167602).

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

102541222542 is a wasteful number, since it uses less digits than its factorization.

102541222542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230353.

The product of its (nonzero) digits is 12800, while the sum is 30.

Adding to 102541222542 its reverse (245222145201), we get a palindrome (347763367743).

The spelling of 102541222542 in words is "one hundred two billion, five hundred forty-one million, two hundred twenty-two thousand, five hundred forty-two".