11422121240 has 32 divisors (see below), whose sum is σ = 25703844480. Its totient is φ = 4568124672.

The previous prime is 11422121233. The next prime is 11422121273. The reversal of 11422121240 is 4212122411.

It is a super-3 number, since 3×11422121240³ (a number of 31 digits) contains 333 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 an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 284492 + ... + 322148.

It is an arithmetic number, because the mean of its divisors is an integer number (803245140).

Almost surely, 2^11422121240 is an apocalyptic number.

11422121240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11422121240 is an abundant number, since it is smaller than the sum of its proper divisors (14281723240).

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

11422121240 is a wasteful number, since it uses less digits than its factorization.

11422121240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45251 (or 45247 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 11422121240 its reverse (4212122411), we get a palindrome (15634243651).

The spelling of 11422121240 in words is "eleven billion, four hundred twenty-two million, one hundred twenty-one thousand, two hundred forty".