11122221010000 has 50 divisors (see below), whose sum is σ = 26928009311522. Its totient is φ = 4448888400000.

The previous prime is 11122221009997. The next prime is 11122221010003. The reversal of 11122221010000 is 1012222111.

It is an interprime number because it is at equal distance from previous prime (11122221009997) and next prime (11122221010003).

It can be written as a sum of positive squares in 5 ways, for example, as 8003874708544 + 3118346301456 = 2829112^2 + 1765884^2 .

It is a tau number, because it is divible by the number of its divisors (50).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11122221010003) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 556101051 + ... + 556121050.

Almost surely, 2^{11122221010000} is an apocalyptic number.

11122221010000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11122221010000 is an abundant number, since it is smaller than the sum of its proper divisors (15805788301522).

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

11122221010000 is an equidigital number, since it uses as much as digits as its factorization.

11122221010000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112222129 (or 1112222108 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11122221010000 its reverse (1012222111), we get a palindrome (11123233232111).

The spelling of 11122221010000 in words is "eleven trillion, one hundred twenty-two billion, two hundred twenty-one million, ten thousand".