100212122122 has 32 divisors (see below), whose sum is σ = 178908912000. Its totient is φ = 41188757568.

The previous prime is 100212122083. The next prime is 100212122137. The reversal of 100212122122 is 221221212001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 100212122096 and 100212122105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 767788 + ... + 888775.

It is an arithmetic number, because the mean of its divisors is an integer number (5590903500).

Almost surely, 2^100212122122 is an apocalyptic number.

100212122122 is a deficient number, since it is larger than the sum of its proper divisors (78696789878).

100212122122 is a wasteful number, since it uses less digits than its factorization.

100212122122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1656750.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 100212122122 its reverse (221221212001), we get a palindrome (321433334123).

The spelling of 100212122122 in words is "one hundred billion, two hundred twelve million, one hundred twenty-two thousand, one hundred twenty-two".