201011021100 has 108 divisors (see below), whose sum is σ = 647086576864. Its totient is φ = 52154202240.

The previous prime is 201011021083. The next prime is 201011021117. The reversal of 201011021100 is 1120110102.

It is a happy number.

201011021100 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (201011021083) and next prime (201011021117).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2984884 + ... + 3051483.

Almost surely, 2^201011021100 is an apocalyptic number.

201011021100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201011021100 is an abundant number, since it is smaller than the sum of its proper divisors (446075555764).

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

201011021100 is a wasteful number, since it uses less digits than its factorization.

201011021100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6036424 (or 6036414 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 201011021100 its reverse (1120110102), we get a palindrome (202131131202).

The spelling of 201011021100 in words is "two hundred one billion, eleven million, twenty-one thousand, one hundred".