201222210220 has 12 divisors (see below), whose sum is σ = 422566641504. Its totient is φ = 80488884080.

The previous prime is 201222210157. The next prime is 201222210221. The reversal of 201222210220 is 22012222102.

It is a junction number, because it is equal to n+sod(n) for n = 201222210194 and 201222210203.

It is not an unprimeable number, because it can be changed into a prime (201222210221) 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, 5030555236 + ... + 5030555275.

It is an arithmetic number, because the mean of its divisors is an integer number (35213886792).

Almost surely, 2^201222210220 is an apocalyptic number.

201222210220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201222210220 is an abundant number, since it is smaller than the sum of its proper divisors (221344431284).

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

201222210220 is a wasteful number, since it uses less digits than its factorization.

201222210220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10061110520 (or 10061110518 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 201222210220 its reverse (22012222102), we get a palindrome (223234432322).

The spelling of 201222210220 in words is "two hundred one billion, two hundred twenty-two million, two hundred ten thousand, two hundred twenty".