221210040240200 has 48 divisors (see below), whose sum is σ = 561069102069360. Its totient is φ = 80440014632000.

The previous prime is 221210040240191. The next prime is 221210040240209. The reversal of 221210040240200 is 2042040012122.

It is an interprime number because it is at equal distance from previous prime (221210040240191) and next prime (221210040240209).

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

It is not an unprimeable number, because it can be changed into a prime (221210040240209) 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, 50275006946 + ... + 50275011345.

It is an arithmetic number, because the mean of its divisors is an integer number (11688939626445).

Almost surely, 2^{221210040240200} is an apocalyptic number.

221210040240200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221210040240200 is an abundant number, since it is smaller than the sum of its proper divisors (339859061829160).

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

221210040240200 is a wasteful number, since it uses less digits than its factorization.

221210040240200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100550018318 (or 100550018309 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 221210040240200 its reverse (2042040012122), we get a palindrome (223252080252322).

The spelling of 221210040240200 in words is "two hundred twenty-one trillion, two hundred ten billion, forty million, two hundred forty thousand, two hundred".