100500721122 has 64 divisors (see below), whose sum is σ = 218886238080. Its totient is φ = 30653738496.

The previous prime is 100500721117. The next prime is 100500721129. The reversal of 100500721122 is 221127005001.

It is not an unprimeable number, because it can be changed into a prime (100500721129) 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, 490908 + ... + 664824.

It is an arithmetic number, because the mean of its divisors is an integer number (3420097470).

Almost surely, 2^100500721122 is an apocalyptic number.

100500721122 is an abundant number, since it is smaller than the sum of its proper divisors (118385516958).

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

100500721122 is a wasteful number, since it uses less digits than its factorization.

100500721122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174115.

The product of its (nonzero) digits is 280, while the sum is 21.

Adding to 100500721122 its reverse (221127005001), we get a palindrome (321627726123).

The spelling of 100500721122 in words is "one hundred billion, five hundred million, seven hundred twenty-one thousand, one hundred twenty-two".