11122210011988 has 48 divisors (see below), whose sum is σ = 21395320203600. Its totient is φ = 5035514839040.

The previous prime is 11122210011961. The next prime is 11122210011989. The reversal of 11122210011988 is 88911001222111.

11122210011988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 1058075562384 + 10064134449604 = 1028628^2 + 3172402^2 .

It is a super-2 number, since 2×11122210011988² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11122210011989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9481573 + ... + 10589836.

It is an arithmetic number, because the mean of its divisors is an integer number (445735837575).

Almost surely, 2^{11122210011988} is an apocalyptic number.

It is an amenable number.

11122210011988 is a deficient number, since it is larger than the sum of its proper divisors (10273110191612).

11122210011988 is a wasteful number, since it uses less digits than its factorization.

11122210011988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20071740 (or 20071738 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 37.

The spelling of 11122210011988 in words is "eleven trillion, one hundred twenty-two billion, two hundred ten million, eleven thousand, nine hundred eighty-eight".