221022220101100 has 72 divisors (see below), whose sum is σ = 523222350720048. Its totient is φ = 80371335916800.

The previous prime is 221022220101083. The next prime is 221022220101169. The reversal of 221022220101100 is 1101022220122.

It is a happy number.

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, 347983414 + ... + 348617986.

It is an arithmetic number, because the mean of its divisors is an integer number (7266977093334).

Almost surely, 2^{221022220101100} is an apocalyptic number.

221022220101100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221022220101100 is an abundant number, since it is smaller than the sum of its proper divisors (302200130618948).

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

221022220101100 is a wasteful number, since it uses less digits than its factorization.

221022220101100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 951235 (or 951228 counting only the distinct ones).

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

Adding to 221022220101100 its reverse (1101022220122), we get a palindrome (222123242321222).

It can be divided in two parts, 2210222 and 20101100, that added together give a palindrome (22311322).

The spelling of 221022220101100 in words is "two hundred twenty-one trillion, twenty-two billion, two hundred twenty million, one hundred one thousand, one hundred".