201120221221100 has 36 divisors (see below), whose sum is σ = 462103284762504. Its totient is φ = 75715847988480.

The previous prime is 201120221221097. The next prime is 201120221221169. The reversal of 201120221221100 is 1122122021102.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59153004542 + ... + 59153007941.

It is an arithmetic number, because the mean of its divisors is an integer number (12836202354514).

Almost surely, 2^{201120221221100} is an apocalyptic number.

201120221221100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201120221221100 is an abundant number, since it is smaller than the sum of its proper divisors (260983063541404).

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

201120221221100 is a wasteful number, since it uses less digits than its factorization.

201120221221100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118306012514 (or 118306012507 counting only the distinct ones).

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

Adding to 201120221221100 its reverse (1122122021102), we get a palindrome (202242343242202).

The spelling of 201120221221100 in words is "two hundred one trillion, one hundred twenty billion, two hundred twenty-one million, two hundred twenty-one thousand, one hundred".