212203001100 has 72 divisors (see below), whose sum is σ = 633779657728. Its totient is φ = 54762062400.

The previous prime is 212203001093. The next prime is 212203001117. The reversal of 212203001100 is 1100302212.

It is a super-2 number, since 2×212203001100² (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 an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11399464 + ... + 11418063.

Almost surely, 2^212203001100 is an apocalyptic number.

212203001100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212203001100 is an abundant number, since it is smaller than the sum of its proper divisors (421576656628).

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

212203001100 is a wasteful number, since it uses less digits than its factorization.

212203001100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22817575 (or 22817568 counting only the distinct ones).

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

Adding to 212203001100 its reverse (1100302212), we get a palindrome (213303303312).

The spelling of 212203001100 in words is "two hundred twelve billion, two hundred three million, one thousand, one hundred".