100220012552 has 128 divisors (see below), whose sum is σ = 219941049600. Its totient is φ = 42307584000.

The previous prime is 100220012537. The next prime is 100220012597. The reversal of 100220012552 is 255210022001.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53335949 + ... + 53337827.

It is an arithmetic number, because the mean of its divisors is an integer number (1718289450).

Almost surely, 2^100220012552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100220012552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109970524800).

100220012552 is an abundant number, since it is smaller than the sum of its proper divisors (119721037048).

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

100220012552 is a wasteful number, since it uses less digits than its factorization.

100220012552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2367 (or 2363 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

Adding to 100220012552 its reverse (255210022001), we get a palindrome (355430034553).

The spelling of 100220012552 in words is "one hundred billion, two hundred twenty million, twelve thousand, five hundred fifty-two".