212320222100 has 36 divisors (see below), whose sum is σ = 526554152544. Its totient is φ = 72795504480.

The previous prime is 212320222061. The next prime is 212320222109. The reversal of 212320222100 is 1222023212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212320222109) 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, 151656602 + ... + 151658001.

Almost surely, 2^212320222100 is an apocalyptic number.

212320222100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212320222100 is an abundant number, since it is smaller than the sum of its proper divisors (314233930444).

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

212320222100 is a wasteful number, since it uses less digits than its factorization.

212320222100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303314624 (or 303314617 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 212320222100 its reverse (1222023212), we get a palindrome (213542245312).

The spelling of 212320222100 in words is "two hundred twelve billion, three hundred twenty million, two hundred twenty-two thousand, one hundred".