220221100121000 has 128 divisors (see below), whose sum is σ = 571692620304000. Its totient is φ = 78723104896000.

The previous prime is 220221100120999. The next prime is 220221100121047. The reversal of 220221100121000 is 121001122022.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 169012865 + ... + 170310864.

It is an arithmetic number, because the mean of its divisors is an integer number (4466348596125).

Almost surely, 2^{220221100121000} is an apocalyptic number.

220221100121000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220221100121000 is an abundant number, since it is smaller than the sum of its proper divisors (351471520183000).

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

220221100121000 is a wasteful number, since it uses less digits than its factorization.

220221100121000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339323820 (or 339323806 counting only the distinct ones).

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

Adding to 220221100121000 its reverse (121001122022), we get a palindrome (220342101243022).

The spelling of 220221100121000 in words is "two hundred twenty trillion, two hundred twenty-one billion, one hundred million, one hundred twenty-one thousand".