11121021113240 has 64 divisors (see below), whose sum is σ = 25047285147360. Its totient is φ = 4443967528960.

The previous prime is 11121021113161. The next prime is 11121021113249. The reversal of 11121021113240 is 4231112012111.

It is a happy number.

It is a super-2 number, since 2×11121021113240² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11121021113249) 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, 331153250 + ... + 331186830.

Almost surely, 2^{11121021113240} is an apocalyptic number.

11121021113240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11121021113240 is an abundant number, since it is smaller than the sum of its proper divisors (13926264034120).

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

11121021113240 is a wasteful number, since it uses less digits than its factorization.

11121021113240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41612 (or 41608 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 11121021113240 its reverse (4231112012111), we get a palindrome (15352133125351).

The spelling of 11121021113240 in words is "eleven trillion, one hundred twenty-one billion, twenty-one million, one hundred thirteen thousand, two hundred forty".