221441042000 has 320 divisors, whose sum is σ = 568179705600. Its totient is φ = 83346278400.

The previous prime is 221441041973. The next prime is 221441042021. The reversal of 221441042000 is 240144122.

It is a super-2 number, since 2×221441042000² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

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, 557785802 + ... + 557786198.

It is an arithmetic number, because the mean of its divisors is an integer number (1775561580).

Almost surely, 2^221441042000 is an apocalyptic number.

221441042000 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 221441042000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284089852800).

221441042000 is an abundant number, since it is smaller than the sum of its proper divisors (346738663600).

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

221441042000 is a wasteful number, since it uses less digits than its factorization.

221441042000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671 (or 655 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 221441042000 its reverse (240144122), we get a palindrome (221681186122).

The spelling of 221441042000 in words is "two hundred twenty-one billion, four hundred forty-one million, forty-two thousand".