221101100122000 has 320 divisors, whose sum is σ = 660702776887296. Its totient is φ = 69828886732800.

The previous prime is 221101100121991. The next prime is 221101100122057. The reversal of 221101100122000 is 221001101122.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1303062 + ... + 21068938.

Almost surely, 2^{221101100122000} is an apocalyptic number.

221101100122000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 221101100122000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330351388443648).

221101100122000 is an abundant number, since it is smaller than the sum of its proper divisors (439601676765296).

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

221101100122000 is a wasteful number, since it uses less digits than its factorization.

221101100122000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19765971 (or 19765955 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 221101100122000 its reverse (221001101122), we get a palindrome (221322101223122).

The spelling of 221101100122000 in words is "two hundred twenty-one trillion, one hundred one billion, one hundred million, one hundred twenty-two thousand".