201122212011020 has 24 divisors (see below), whose sum is σ = 422357238545424. Its totient is φ = 80448771790656.

The previous prime is 201122212011011. The next prime is 201122212011101. The reversal of 201122212011020 is 20110212221102.

It is a self number, because there is not a number n which added to its sum of digits gives 201122212011020.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8349914 + ... + 21724766.

It is an arithmetic number, because the mean of its divisors is an integer number (17598218272726).

Almost surely, 2^{201122212011020} is an apocalyptic number.

201122212011020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201122212011020 is an abundant number, since it is smaller than the sum of its proper divisors (221235026534404).

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

201122212011020 is a wasteful number, since it uses less digits than its factorization.

201122212011020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14126729 (or 14126727 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 201122212011020 its reverse (20110212221102), we get a palindrome (221232424232122).

The spelling of 201122212011020 in words is "two hundred one trillion, one hundred twenty-two billion, two hundred twelve million, eleven thousand, twenty".