100000101212020 has 48 divisors (see below), whose sum is σ = 213640803105408. Its totient is φ = 39309430849920.

The previous prime is 100000101212003. The next prime is 100000101212021. The reversal of 100000101212020 is 20212101000001.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 100000101211988 and 100000101212006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100000101212021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88066432 + ... + 89194711.

It is an arithmetic number, because the mean of its divisors is an integer number (4450850064696).

Almost surely, 2^{100000101212020} is an apocalyptic number.

100000101212020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100000101212020 is an abundant number, since it is smaller than the sum of its proper divisors (113640701893388).

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

100000101212020 is a wasteful number, since it uses less digits than its factorization.

100000101212020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177261640 (or 177261638 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 100000101212020 its reverse (20212101000001), we get a palindrome (120212202212021).

The spelling of 100000101212020 in words is "one hundred trillion, one hundred one million, two hundred twelve thousand, twenty".