201022210220 has 96 divisors (see below), whose sum is σ = 461025915840. Its totient is φ = 73181260800.

The previous prime is 201022210219. The next prime is 201022210229. The reversal of 201022210220 is 22012220102.

It is a junction number, because it is equal to n+sod(n) for n = 201022210195 and 201022210204.

It is not an unprimeable number, because it can be changed into a prime (201022210229) 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, 10975070 + ... + 10993370.

It is an arithmetic number, because the mean of its divisors is an integer number (4802353290).

Almost surely, 2^201022210220 is an apocalyptic number.

201022210220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201022210220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (230512957920).

201022210220 is an abundant number, since it is smaller than the sum of its proper divisors (260003705620).

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

201022210220 is a wasteful number, since it uses less digits than its factorization.

201022210220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18915 (or 18913 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 201022210220 its reverse (22012220102), we get a palindrome (223034430322).

It can be divided in two parts, 20102 and 2210220, that added together give a palindrome (2230322).

The spelling of 201022210220 in words is "two hundred one billion, twenty-two million, two hundred ten thousand, two hundred twenty".