11221004420 has 24 divisors (see below), whose sum is σ = 24804326400. Its totient is φ = 4252169952.

The previous prime is 11221004419. The next prime is 11221004527. The reversal of 11221004420 is 2440012211.

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, 14764100 + ... + 14764859.

It is an arithmetic number, because the mean of its divisors is an integer number (1033513600).

Almost surely, 2^11221004420 is an apocalyptic number.

11221004420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11221004420 is an abundant number, since it is smaller than the sum of its proper divisors (13583321980).

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

11221004420 is a wasteful number, since it uses less digits than its factorization.

11221004420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29528987 (or 29528985 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 11221004420 its reverse (2440012211), we get a palindrome (13661016631).

The spelling of 11221004420 in words is "eleven billion, two hundred twenty-one million, four thousand, four hundred twenty".