212021003100 has 36 divisors (see below), whose sum is σ = 613447436504. Its totient is φ = 56538934080.

The previous prime is 212021003099. The next prime is 212021003143. The reversal of 212021003100 is 1300120212.

It is a super-2 number, since 2×212021003100² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 353368039 + ... + 353368638.

Almost surely, 2^212021003100 is an apocalyptic number.

212021003100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212021003100 is an abundant number, since it is smaller than the sum of its proper divisors (401426433404).

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

212021003100 is a wasteful number, since it uses less digits than its factorization.

212021003100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706736694 (or 706736687 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 212021003100 its reverse (1300120212), we get a palindrome (213321123312).

The spelling of 212021003100 in words is "two hundred twelve billion, twenty-one million, three thousand, one hundred".