8891122401 has 12 divisors (see below), whose sum is σ = 14677408512. Its totient is φ = 5080641336.

The previous prime is 8891122391. The next prime is 8891122403. The reversal of 8891122401 is 1042211988.

It is a happy number.

It is not a de Polignac number, because 8891122401 - 2¹⁸ = 8890860257 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8891122403) 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, 70564401 + ... + 70564526.

It is an arithmetic number, because the mean of its divisors is an integer number (1223117376).

Almost surely, 2^8891122401 is an apocalyptic number.

It is an amenable number.

8891122401 is a deficient number, since it is larger than the sum of its proper divisors (5786286111).

8891122401 is a wasteful number, since it uses less digits than its factorization.

8891122401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141128940 (or 141128937 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 36.

The square root of 8891122401 is about 94292.7484009242. The cubic root of 8891122401 is about 2071.6618238086.

The spelling of 8891122401 in words is "eight billion, eight hundred ninety-one million, one hundred twenty-two thousand, four hundred one".