100021233212 has 24 divisors (see below), whose sum is σ = 175997162880. Its totient is φ = 49736536640.

The previous prime is 100021233197. The next prime is 100021233259. The reversal of 100021233212 is 212332120001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2017214 + ... + 2066202.

It is an arithmetic number, because the mean of its divisors is an integer number (7333215120).

Almost surely, 2^100021233212 is an apocalyptic number.

It is an amenable number.

100021233212 is a deficient number, since it is larger than the sum of its proper divisors (75975929668).

100021233212 is a wasteful number, since it uses less digits than its factorization.

100021233212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51781 (or 51779 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 100021233212 its reverse (212332120001), we get a palindrome (312353353213).

The spelling of 100021233212 in words is "one hundred billion, twenty-one million, two hundred thirty-three thousand, two hundred twelve".