11211012210100 has 18 divisors (see below), whose sum is σ = 24327896496134. Its totient is φ = 4484404884000.

The previous prime is 11211012210067. The next prime is 11211012210131. The reversal of 11211012210100 is 101221011211.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 224028035856 + 10986984174244 = 473316^2 + 3314662^2 .

It is a super-2 number, since 2×11211012210100² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56055060951 + ... + 56055061150.

Almost surely, 2^{11211012210100} is an apocalyptic number.

11211012210100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11211012210100 is an abundant number, since it is smaller than the sum of its proper divisors (13116884286034).

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

11211012210100 is a wasteful number, since it uses less digits than its factorization.

11211012210100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112110122115 (or 112110122108 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 11211012210100 its reverse (101221011211), we get a palindrome (11312233221311).

The spelling of 11211012210100 in words is "eleven trillion, two hundred eleven billion, twelve million, two hundred ten thousand, one hundred".