221000201210022 has 64 divisors (see below), whose sum is σ = 482756255783424. Its totient is φ = 67035149153280.

The previous prime is 221000201209771. The next prime is 221000201210023. The reversal of 221000201210022 is 220012102000122.

It is a junction number, because it is equal to n+sod(n) for n = 221000201209983 and 221000201210010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221000201210023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49801953 + ... + 54057699.

It is an arithmetic number, because the mean of its divisors is an integer number (7543066496616).

Almost surely, 2^{221000201210022} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 221000201210022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241378127891712).

221000201210022 is an abundant number, since it is smaller than the sum of its proper divisors (261756054573402).

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

221000201210022 is a wasteful number, since it uses less digits than its factorization.

221000201210022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4265213.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 221000201210022 its reverse (220012102000122), we get a palindrome (441012303210144).

The spelling of 221000201210022 in words is "two hundred twenty-one trillion, two hundred one million, two hundred ten thousand, twenty-two".