100000212020 has 12 divisors (see below), whose sum is σ = 210000445284. Its totient is φ = 40000084800.

The previous prime is 100000211939. The next prime is 100000212049. The reversal of 100000212020 is 20212000001.

It can be written as a sum of positive squares in 2 ways, for example, as 12826468516 + 87173743504 = 113254^2 + 295252^2 .

It is a junction number, because it is equal to n+sod(n) for n = 100000211989 and 100000212007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2500005281 + ... + 2500005320.

It is an arithmetic number, because the mean of its divisors is an integer number (17500037107).

Almost surely, 2^100000212020 is an apocalyptic number.

100000212020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100000212020 is an abundant number, since it is smaller than the sum of its proper divisors (110000233264).

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

100000212020 is a wasteful number, since it uses less digits than its factorization.

100000212020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5000010610 (or 5000010608 counting only the distinct ones).

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

Adding to 100000212020 its reverse (20212000001), we get a palindrome (120212212021).

The spelling of 100000212020 in words is "one hundred billion, two hundred twelve thousand, twenty".