201121012222100 has 36 divisors (see below), whose sum is σ = 436433873569344. Its totient is φ = 80448169488480.

The previous prime is 201121012222063. The next prime is 201121012222133. The reversal of 201121012222100 is 1222210121102.

201121012222100 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 33669947 + ... + 39190653.

It is an arithmetic number, because the mean of its divisors is an integer number (12123163154704).

Almost surely, 2^{201121012222100} is an apocalyptic number.

201121012222100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201121012222100 is an abundant number, since it is smaller than the sum of its proper divisors (235312861347244).

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

201121012222100 is a wasteful number, since it uses less digits than its factorization.

201121012222100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5885024 (or 5885017 counting only the distinct ones).

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

Adding to 201121012222100 its reverse (1222210121102), we get a palindrome (202343222343202).

The spelling of 201121012222100 in words is "two hundred one trillion, one hundred twenty-one billion, twelve million, two hundred twenty-two thousand, one hundred".