11122021240 has 64 divisors (see below), whose sum is σ = 27310439520. Its totient is φ = 4042752000.

The previous prime is 11122021213. The next prime is 11122021247. The reversal of 11122021240 is 4212022111.

It is a super-2 number, since 2×11122021240² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11122021247) 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, 1968820 + ... + 1974460.

Almost surely, 2^11122021240 is an apocalyptic number.

11122021240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11122021240 is an abundant number, since it is smaller than the sum of its proper divisors (16188418280).

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

11122021240 is a wasteful number, since it uses less digits than its factorization.

11122021240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10144 (or 10140 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 11122021240 its reverse (4212022111), we get a palindrome (15334043351).

The spelling of 11122021240 in words is "eleven billion, one hundred twenty-two million, twenty-one thousand, two hundred forty".