11211202122100 has 36 divisors (see below), whose sum is σ = 24336415990348. Its totient is φ = 4482986400000.

The previous prime is 11211202122097. The next prime is 11211202122173. The reversal of 11211202122100 is 122120211211.

It can be written as a sum of positive squares in 6 ways, for example, as 1053521764 + 11210148600336 = 32458^2 + 3348156^2 .

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, 18379011 + ... + 18979210.

Almost surely, 2^{11211202122100} is an apocalyptic number.

11211202122100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11211202122100 is an abundant number, since it is smaller than the sum of its proper divisors (13125213868248).

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

11211202122100 is a wasteful number, since it uses less digits than its factorization.

11211202122100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37361236 (or 37361229 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11211202122100 its reverse (122120211211), we get a palindrome (11333322333311).

The spelling of 11211202122100 in words is "eleven trillion, two hundred eleven billion, two hundred two million, one hundred twenty-two thousand, one hundred".