212020100 has 36 divisors (see below), whose sum is σ = 470792784. Its totient is φ = 82834080.

The previous prime is 212020063. The next prime is 212020103. The reversal of 212020100 is 1020212.

It is not an unprimeable number, because it can be changed into a prime (212020103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20354 + ... + 28953.

Almost surely, 2^212020100 is an apocalyptic number.

212020100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212020100 is an abundant number, since it is smaller than the sum of its proper divisors (258772684).

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

212020100 is a wasteful number, since it uses less digits than its factorization.

212020100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49364 (or 49357 counting only the distinct ones).

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

The square root of 212020100 is about 14560.9099990351. The cubic root of 212020100 is about 596.2920396619.

Adding to 212020100 its reverse (1020212), we get a palindrome (213040312).

The spelling of 212020100 in words is "two hundred twelve million, twenty thousand, one hundred".