221066051100620 has 192 divisors, whose sum is σ = 542385646387200. Its totient is φ = 74794027069440.

The previous prime is 221066051100581. The next prime is 221066051100673. The reversal of 221066051100620 is 26001150660122.

It is a super-2 number, since 2×221066051100620² (a number of 29 digits) contains 22 as substring.

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, 178345109 + ... + 179580371.

It is an arithmetic number, because the mean of its divisors is an integer number (2824925241600).

Almost surely, 2^{221066051100620} is an apocalyptic number.

221066051100620 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 221066051100620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (271192823193600).

221066051100620 is an abundant number, since it is smaller than the sum of its proper divisors (321319595286580).

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

221066051100620 is a wasteful number, since it uses less digits than its factorization.

221066051100620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1235848 (or 1235846 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The spelling of 221066051100620 in words is "two hundred twenty-one trillion, sixty-six billion, fifty-one million, one hundred thousand, six hundred twenty".