100220212212 has 24 divisors (see below), whose sum is σ = 233852561376. Its totient is φ = 33405966048.

The previous prime is 100220212193. The next prime is 100220212237. The reversal of 100220212212 is 212212022001.

It is a junction number, because it is equal to n+sod(n) for n = 100220212191 and 100220212200.

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, 724543 + ... + 851705.

It is an arithmetic number, because the mean of its divisors is an integer number (9743856724).

Almost surely, 2^100220212212 is an apocalyptic number.

100220212212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

100220212212 is an abundant number, since it is smaller than the sum of its proper divisors (133632349164).

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

100220212212 is a wasteful number, since it uses less digits than its factorization.

100220212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192847 (or 192845 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 100220212212 its reverse (212212022001), we get a palindrome (312432234213).

The spelling of 100220212212 in words is "one hundred billion, two hundred twenty million, two hundred twelve thousand, two hundred twelve".