1022200133221 has 4 divisors (see below), whose sum is σ = 1022449880812. Its totient is φ = 1021950385632.

The previous prime is 1022200133197. The next prime is 1022200133261. The reversal of 1022200133221 is 1223310022201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 477223982596 + 544976150625 = 690814^2 + 738225^2 .

It is a cyclic number.

It is not a de Polignac number, because 1022200133221 - 2⁵ = 1022200133189 is a prime.

It is a super-2 number, since 2×1022200133221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022200133261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124867656 + ... + 124875841.

It is an arithmetic number, because the mean of its divisors is an integer number (255612470203).

Almost surely, 2^{1022200133221} is an apocalyptic number.

It is an amenable number.

1022200133221 is a deficient number, since it is larger than the sum of its proper divisors (249747591).

1022200133221 is an equidigital number, since it uses as much as digits as its factorization.

1022200133221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249747590.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1022200133221 its reverse (1223310022201), we get a palindrome (2245510155422).

The spelling of 1022200133221 in words is "one trillion, twenty-two billion, two hundred million, one hundred thirty-three thousand, two hundred twenty-one".