201122102112220 has 24 divisors (see below), whose sum is σ = 444585699406800. Its totient is φ = 76214691326592.

The previous prime is 201122102112157. The next prime is 201122102112227. The reversal of 201122102112220 is 22211201221102.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201122102112227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264634344505 + ... + 264634345264.

It is an arithmetic number, because the mean of its divisors is an integer number (18524404141950).

Almost surely, 2^{201122102112220} is an apocalyptic number.

201122102112220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201122102112220 is an abundant number, since it is smaller than the sum of its proper divisors (243463597294580).

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

201122102112220 is a wasteful number, since it uses less digits than its factorization.

201122102112220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529268689797 (or 529268689795 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 201122102112220 its reverse (22211201221102), we get a palindrome (223333303333322).

The spelling of 201122102112220 in words is "two hundred one trillion, one hundred twenty-two billion, one hundred two million, one hundred twelve thousand, two hundred twenty".