221200212221022 has 16 divisors (see below), whose sum is σ = 453190678697232. Its totient is φ = 71935028364480.

The previous prime is 221200212220993. The next prime is 221200212221033. The reversal of 221200212221022 is 220122212002122.

It is a self number, because there is not a number n which added to its sum of digits gives 221200212221022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 449593927033 + ... + 449593927524.

It is an arithmetic number, because the mean of its divisors is an integer number (28324417418577).

Almost surely, 2^{221200212221022} is an apocalyptic number.

221200212221022 is an abundant number, since it is smaller than the sum of its proper divisors (231990466476210).

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

221200212221022 is a wasteful number, since it uses less digits than its factorization.

221200212221022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 899187854603.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 221200212221022 its reverse (220122212002122), we get a palindrome (441322424223144).

The spelling of 221200212221022 in words is "two hundred twenty-one trillion, two hundred billion, two hundred twelve million, two hundred twenty-one thousand, twenty-two".