11212414420 has 24 divisors (see below), whose sum is σ = 24358005000. Its totient is φ = 4330311552.

The previous prime is 11212414393. The next prime is 11212414427. The reversal of 11212414420 is 2441421211.

It can be written as a sum of positive squares in 4 ways, for example, as 10732176 + 11201682244 = 3276^2 + 105838^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11212414391 and 11212414400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11212414427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9665295 + ... + 9666454.

It is an arithmetic number, because the mean of its divisors is an integer number (1014916875).

Almost surely, 2^11212414420 is an apocalyptic number.

11212414420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11212414420 is an abundant number, since it is smaller than the sum of its proper divisors (13145590580).

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

11212414420 is a wasteful number, since it uses less digits than its factorization.

11212414420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19331787 (or 19331785 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 11212414420 its reverse (2441421211), we get a palindrome (13653835631).

The spelling of 11212414420 in words is "eleven billion, two hundred twelve million, four hundred fourteen thousand, four hundred twenty".