1226411220 has 48 divisors (see below), whose sum is σ = 3440082240. Its totient is φ = 326459136.

The previous prime is 1226411203. The next prime is 1226411233. The reversal of 1226411220 is 221146221.

It is a super-3 number, since 3×1226411220³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16179 + ... + 52101.

It is an arithmetic number, because the mean of its divisors is an integer number (71668380).

Almost surely, 2^1226411220 is an apocalyptic number.

1226411220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1226411220 is an abundant number, since it is smaller than the sum of its proper divisors (2213671020).

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

1226411220 is a wasteful number, since it uses less digits than its factorization.

1226411220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36504 (or 36502 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1226411220 is about 35020.1544828118. The cubic root of 1226411220 is about 1070.3982039010.

Adding to 1226411220 its reverse (221146221), we get a palindrome (1447557441).

The spelling of 1226411220 in words is "one billion, two hundred twenty-six million, four hundred eleven thousand, two hundred twenty".