11212222210100 has 72 divisors (see below), whose sum is σ = 24376214535960. Its totient is φ = 4476469985280.

The previous prime is 11212222210081. The next prime is 11212222210121. The reversal of 11212222210100 is 101222221211.

It can be written as a sum of positive squares in 12 ways, for example, as 7966596570256 + 3245625639844 = 2822516^2 + 1801562^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 276626636 + ... + 276667164.

Almost surely, 2^{11212222210100} is an apocalyptic number.

11212222210100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11212222210100 is an abundant number, since it is smaller than the sum of its proper divisors (13163992325860).

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

11212222210100 is a wasteful number, since it uses less digits than its factorization.

11212222210100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45669 (or 45662 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11212222210100 its reverse (101222221211), we get a palindrome (11313444431311).

The spelling of 11212222210100 in words is "eleven trillion, two hundred twelve billion, two hundred twenty-two million, two hundred ten thousand, one hundred".