221022322120000 has 70 divisors (see below), whose sum is σ = 548063526702098. Its totient is φ = 88408928832000.

The previous prime is 221022322119997. The next prime is 221022322120009. The reversal of 221022322120000 is 21223220122.

It can be written as a sum of positive squares in 5 ways, for example, as 75257845816384 + 145764476303616 = 8675128^2 + 12073296^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 221022322120000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221022322120009) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2762739027 + ... + 2762819026.

Almost surely, 2^{221022322120000} is an apocalyptic number.

221022322120000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

221022322120000 is an abundant number, since it is smaller than the sum of its proper divisors (327041204582098).

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

221022322120000 is an frugal number, since it uses more digits than its factorization.

221022322120000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5525558085 (or 5525558060 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 221022322120000 its reverse (21223220122), we get a palindrome (221043545340122).

The spelling of 221022322120000 in words is "two hundred twenty-one trillion, twenty-two billion, three hundred twenty-two million, one hundred twenty thousand".