100121212232 has 16 divisors (see below), whose sum is σ = 195889328640. Its totient is φ = 47884057936.

The previous prime is 100121212229. The next prime is 100121212271. The reversal of 100121212232 is 232212121001.

It is a self number, because there is not a number n which added to its sum of digits gives 100121212232.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 272068328 + ... + 272068695.

It is an arithmetic number, because the mean of its divisors is an integer number (12243083040).

Almost surely, 2^100121212232 is an apocalyptic number.

It is an amenable number.

100121212232 is a deficient number, since it is larger than the sum of its proper divisors (95768116408).

100121212232 is a wasteful number, since it uses less digits than its factorization.

100121212232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 544137052 (or 544137048 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 100121212232 its reverse (232212121001), we get a palindrome (332333333233).

The spelling of 100121212232 in words is "one hundred billion, one hundred twenty-one million, two hundred twelve thousand, two hundred thirty-two".