11222355420 has 36 divisors (see below), whose sum is σ = 34041145320. Its totient is φ = 2992628064.

The previous prime is 11222355413. The next prime is 11222355427. The reversal of 11222355420 is 2455322211.

11222355420 is a `hidden beast` number, since 1 + 1 + 2 + 2 + 235 + 5 + 420 = 666.

It is an interprime number because it is at equal distance from previous prime (11222355413) and next prime (11222355427).

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×11222355420² (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 (11222355427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31173030 + ... + 31173389.

It is an arithmetic number, because the mean of its divisors is an integer number (945587370).

Almost surely, 2^11222355420 is an apocalyptic number.

11222355420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11222355420 is an abundant number, since it is smaller than the sum of its proper divisors (22818789900).

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

11222355420 is a wasteful number, since it uses less digits than its factorization.

11222355420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62346434 (or 62346429 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 11222355420 its reverse (2455322211), we get a palindrome (13677677631).

The spelling of 11222355420 in words is "eleven billion, two hundred twenty-two million, three hundred fifty-five thousand, four hundred twenty".