201122012211020 has 48 divisors (see below), whose sum is σ = 436923387804960. Its totient is φ = 77674147385856.

The previous prime is 201122012211007. The next prime is 201122012211061. The reversal of 201122012211020 is 20112210221102.

It is a self number, because there is not a number n which added to its sum of digits gives 201122012211020.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84176384 + ... + 86532696.

It is an arithmetic number, because the mean of its divisors is an integer number (9102570579270).

Almost surely, 2^{201122012211020} is an apocalyptic number.

201122012211020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201122012211020 is an abundant number, since it is smaller than the sum of its proper divisors (235801375593940).

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

201122012211020 is a wasteful number, since it uses less digits than its factorization.

201122012211020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2503514 (or 2503512 counting only the distinct ones).

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

Adding to 201122012211020 its reverse (20112210221102), we get a palindrome (221234222432122).

The spelling of 201122012211020 in words is "two hundred one trillion, one hundred twenty-two billion, twelve million, two hundred eleven thousand, twenty".