2221001122100 has 36 divisors (see below), whose sum is σ = 5073234146400. Its totient is φ = 841642529760.

The previous prime is 2221001122091. The next prime is 2221001122111. The reversal of 2221001122100 is 12211001222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 584472080 + ... + 584475879.

Almost surely, 2^{2221001122100} is an apocalyptic number.

2221001122100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2221001122100 is an abundant number, since it is smaller than the sum of its proper divisors (2852233024300).

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

2221001122100 is a wasteful number, since it uses less digits than its factorization.

2221001122100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1168947992 (or 1168947985 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2221001122100 its reverse (12211001222), we get a palindrome (2233212123322).

It can be divided in two parts, 2221001122 and 100, that added together give a palindrome (2221001222).

The spelling of 2221001122100 in words is "two trillion, two hundred twenty-one billion, one million, one hundred twenty-two thousand, one hundred".