2221232231100 has 72 divisors (see below), whose sum is σ = 6427137109120. Its totient is φ = 592294322880.

The previous prime is 2221232231081. The next prime is 2221232231107. The reversal of 2221232231100 is 11322321222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221232231107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5207721 + ... + 5618079.

Almost surely, 2^{2221232231100} is an apocalyptic number.

2221232231100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221232231100 is an abundant number, since it is smaller than the sum of its proper divisors (4205904878020).

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

2221232231100 is a wasteful number, since it uses less digits than its factorization.

2221232231100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428419 (or 428412 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 2221232231100 its reverse (11322321222), we get a palindrome (2232554552322).

The spelling of 2221232231100 in words is "two trillion, two hundred twenty-one billion, two hundred thirty-two million, two hundred thirty-one thousand, one hundred".