201122220102012 has 36 divisors (see below), whose sum is σ = 554609758464216. Its totient is φ = 60946127303520.

The previous prime is 201122220101953. The next prime is 201122220102031. The reversal of 201122220102012 is 210201022221102.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 253942196703 + ... + 253942197494.

It is an arithmetic number, because the mean of its divisors is an integer number (15405826624006).

Almost surely, 2^{201122220102012} is an apocalyptic number.

201122220102012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

201122220102012 is an abundant number, since it is smaller than the sum of its proper divisors (353487538362204).

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

201122220102012 is a wasteful number, since it uses less digits than its factorization.

201122220102012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507884394218 (or 507884394213 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 201122220102012 its reverse (210201022221102), we get a palindrome (411323242323114).

The spelling of 201122220102012 in words is "two hundred one trillion, one hundred twenty-two billion, two hundred twenty million, one hundred two thousand, twelve".