201421101100 has 36 divisors (see below), whose sum is σ = 438745762224. Its totient is φ = 80262086080.

The previous prime is 201421101073. The next prime is 201421101169. The reversal of 201421101100 is 1101124102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3802999 + ... + 3855598.

It is an arithmetic number, because the mean of its divisors is an integer number (12187382284).

Almost surely, 2^201421101100 is an apocalyptic number.

201421101100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201421101100 is an abundant number, since it is smaller than the sum of its proper divisors (237324661124).

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

201421101100 is a wasteful number, since it uses less digits than its factorization.

201421101100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7658874 (or 7658867 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 201421101100 its reverse (1101124102), we get a palindrome (202522225202).

The spelling of 201421101100 in words is "two hundred one billion, four hundred twenty-one million, one hundred one thousand, one hundred".