100020402212 has 12 divisors (see below), whose sum is σ = 176768731356. Its totient is φ = 49515050400.

The previous prime is 100020402211. The next prime is 100020402217. The reversal of 100020402212 is 212204020001.

It can be written as a sum of positive squares in 2 ways, for example, as 96905199616 + 3115202596 = 311296^2 + 55814^2 .

It is not an unprimeable number, because it can be changed into a prime (100020402211) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 123787223 + ... + 123788030.

It is an arithmetic number, because the mean of its divisors is an integer number (14730727613).

Almost surely, 2^100020402212 is an apocalyptic number.

It is an amenable number.

100020402212 is a deficient number, since it is larger than the sum of its proper divisors (76748329144).

100020402212 is a wasteful number, since it uses less digits than its factorization.

100020402212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247575358 (or 247575356 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 100020402212 its reverse (212204020001), we get a palindrome (312224422213).

The spelling of 100020402212 in words is "one hundred billion, twenty million, four hundred two thousand, two hundred twelve".