2221021220110 has 256 divisors, whose sum is σ = 5469632593920. Its totient is φ = 628378560000.

The previous prime is 2221021220107. The next prime is 2221021220123. The reversal of 2221021220110 is 110221201222.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 45782287 + ... + 45830773.

It is an arithmetic number, because the mean of its divisors is an integer number (21365752320).

Almost surely, 2^{2221021220110} is an apocalyptic number.

2221021220110 is an abundant number, since it is smaller than the sum of its proper divisors (3248611373810).

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

2221021220110 is a wasteful number, since it uses less digits than its factorization.

2221021220110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48663.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 2221021220110 its reverse (110221201222), we get a palindrome (2331242421332).

The spelling of 2221021220110 in words is "two trillion, two hundred twenty-one billion, twenty-one million, two hundred twenty thousand, one hundred ten".