100212122012 has 24 divisors (see below), whose sum is σ = 178051346256. Its totient is φ = 49344167808.

The previous prime is 100212121981. The next prime is 100212122041. The reversal of 100212122012 is 210221212001.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 378263 + ... + 586094.

It is an arithmetic number, because the mean of its divisors is an integer number (7418806094).

Almost surely, 2^100212122012 is an apocalyptic number.

It is an amenable number.

100212122012 is a deficient number, since it is larger than the sum of its proper divisors (77839224244).

100212122012 is a wasteful number, since it uses less digits than its factorization.

100212122012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 964757 (or 964755 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 100212122012 its reverse (210221212001), we get a palindrome (310433334013).

The spelling of 100212122012 in words is "one hundred billion, two hundred twelve million, one hundred twenty-two thousand, twelve".