202011011100 has 90 divisors (see below), whose sum is σ = 654839917424. Its totient is φ = 53869600800.

The previous prime is 202011011089. The next prime is 202011011107. The reversal of 202011011100 is 1110110202.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (90).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202011011107) by changing a digit.

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 29 ways as a sum of consecutive naturals, for example, 12461716 + ... + 12477915.

Almost surely, 2^202011011100 is an apocalyptic number.

202011011100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202011011100 is an abundant number, since it is smaller than the sum of its proper divisors (452828906324).

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

202011011100 is a wasteful number, since it uses less digits than its factorization.

202011011100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24939657 (or 24939641 counting only the distinct ones).

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

Adding to 202011011100 its reverse (1110110202), we get a palindrome (203121121302).

It can be divided in two parts, 20201 and 1011100, that added together give a palindrome (1031301).

The spelling of 202011011100 in words is "two hundred two billion, eleven million, eleven thousand, one hundred".