100120101221212 has 6 divisors (see below), whose sum is σ = 175210177137128. Its totient is φ = 50060050610604.

The previous prime is 100120101221201. The next prime is 100120101221251. The reversal of 100120101221212 is 212122101021001.

It is a super-2 number, since 2×100120101221212² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 12515012652648 + ... + 12515012652655.

Almost surely, 2^{100120101221212} is an apocalyptic number.

It is an amenable number.

100120101221212 is a deficient number, since it is larger than the sum of its proper divisors (75090075915916).

100120101221212 is a wasteful number, since it uses less digits than its factorization.

100120101221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25030025305307 (or 25030025305305 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 100120101221212 its reverse (212122101021001), we get a palindrome (312242202242213).

The spelling of 100120101221212 in words is "one hundred trillion, one hundred twenty billion, one hundred one million, two hundred twenty-one thousand, two hundred twelve".