212203144100 has 72 divisors (see below), whose sum is σ = 465719025408. Its totient is φ = 83918419200.

The previous prime is 212203144091. The next prime is 212203144123. The reversal of 212203144100 is 1441302212.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 6338405 + ... + 6371795.

Almost surely, 2^212203144100 is an apocalyptic number.

212203144100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212203144100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (232859512704).

212203144100 is an abundant number, since it is smaller than the sum of its proper divisors (253515881308).

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

212203144100 is a wasteful number, since it uses less digits than its factorization.

212203144100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34125 (or 34118 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 212203144100 its reverse (1441302212), we get a palindrome (213644446312).

The spelling of 212203144100 in words is "two hundred twelve billion, two hundred three million, one hundred forty-four thousand, one hundred".