11201210420 has 48 divisors (see below), whose sum is σ = 23722726608. Its totient is φ = 4442434560.

The previous prime is 11201210407. The next prime is 11201210437. The reversal of 11201210420 is 2401210211.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1682476324 + 9518734096 = 41018^2 + 97564^2 .

It is a super-2 number, since 2×11201210420² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11201210395 and 11201210404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2905214 + ... + 2909066.

It is an arithmetic number, because the mean of its divisors is an integer number (494223471).

Almost surely, 2^11201210420 is an apocalyptic number.

11201210420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11201210420 is an abundant number, since it is smaller than the sum of its proper divisors (12521516188).

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

11201210420 is a wasteful number, since it uses less digits than its factorization.

11201210420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5060 (or 5058 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 11201210420 its reverse (2401210211), we get a palindrome (13602420631).

The spelling of 11201210420 in words is "eleven billion, two hundred one million, two hundred ten thousand, four hundred twenty".