2221012321100 has 54 divisors (see below), whose sum is σ = 4924323638220. Its totient is φ = 869502609440.

The previous prime is 2221012321051. The next prime is 2221012321153. The reversal of 2221012321100 is 11232101222.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 4806290 + ... + 5248089.

Almost surely, 2^{2221012321100} is an apocalyptic number.

2221012321100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221012321100 is an abundant number, since it is smaller than the sum of its proper divisors (2703311317120).

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

2221012321100 is a wasteful number, since it uses less digits than its factorization.

2221012321100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10054487 (or 10054433 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 2221012321100 its reverse (11232101222), we get a palindrome (2232244422322).

The spelling of 2221012321100 in words is "two trillion, two hundred twenty-one billion, twelve million, three hundred twenty-one thousand, one hundred".