101212021110100 has 36 divisors (see below), whose sum is σ = 219703320900000. Its totient is φ = 40471308888160.

The previous prime is 101212021110059. The next prime is 101212021110121. The reversal of 101212021110100 is 1011120212101.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 168443050 + ... + 169042849.

It is an arithmetic number, because the mean of its divisors is an integer number (6102870025000).

Almost surely, 2^{101212021110100} is an apocalyptic number.

101212021110100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101212021110100 is an abundant number, since it is smaller than the sum of its proper divisors (118491299789900).

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

101212021110100 is a wasteful number, since it uses less digits than its factorization.

101212021110100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337488912 (or 337488905 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 101212021110100 its reverse (1011120212101), we get a palindrome (102223141322201).

The spelling of 101212021110100 in words is "one hundred one trillion, two hundred twelve billion, twenty-one million, one hundred ten thousand, one hundred".