100120122021212 has 6 divisors (see below), whose sum is σ = 175210213537128. Its totient is φ = 50060061010604.

The previous prime is 100120122021211. The next prime is 100120122021223. The reversal of 100120122021212 is 212120221021001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100120122021211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12515015252648 + ... + 12515015252655.

It is an arithmetic number, because the mean of its divisors is an integer number (29201702256188).

Almost surely, 2^{100120122021212} is an apocalyptic number.

It is an amenable number.

100120122021212 is a deficient number, since it is larger than the sum of its proper divisors (75090091515916).

100120122021212 is a wasteful number, since it uses less digits than its factorization.

100120122021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25030030505307 (or 25030030505305 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 100120122021212 its reverse (212120221021001), we get a palindrome (312240343042213).

The spelling of 100120122021212 in words is "one hundred trillion, one hundred twenty billion, one hundred twenty-two million, twenty-one thousand, two hundred twelve".