201221330022 has 12 divisors (see below), whose sum is σ = 435979548420. Its totient is φ = 67073776668.

The previous prime is 201221329999. The next prime is 201221330027. The reversal of 201221330022 is 220033122102.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 11178962779 = 201221330022 / (2 + 0 + 1 + 2 + 2 + 1 + 3 + 3 + 0 + 0 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 201221329977 and 201221330004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201221330027) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5589481372 + ... + 5589481407.

It is an arithmetic number, because the mean of its divisors is an integer number (36331629035).

Almost surely, 2^201221330022 is an apocalyptic number.

201221330022 is an abundant number, since it is smaller than the sum of its proper divisors (234758218398).

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

201221330022 is a wasteful number, since it uses less digits than its factorization.

201221330022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11178962787 (or 11178962784 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 201221330022 its reverse (220033122102), we get a palindrome (421254452124).

The spelling of 201221330022 in words is "two hundred one billion, two hundred twenty-one million, three hundred thirty thousand, twenty-two".