8801089771221 has 192 divisors, whose sum is σ = 15356720171520. Its totient is φ = 4960266854400.

The previous prime is 8801089771219. The next prime is 8801089771237. The reversal of 8801089771221 is 1221779801088.

It is not a de Polignac number, because 8801089771221 - 2¹ = 8801089771219 is a prime.

It is a super-2 number, since 2×8801089771221² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8801089771291) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 2980387881 + ... + 2980390833.

It is an arithmetic number, because the mean of its divisors is an integer number (79982917560).

Almost surely, 2^{8801089771221} is an apocalyptic number.

It is an amenable number.

8801089771221 is a deficient number, since it is larger than the sum of its proper divisors (6555630400299).

8801089771221 is a wasteful number, since it uses less digits than its factorization.

8801089771221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3625 (or 3608 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 54.

The spelling of 8801089771221 in words is "eight trillion, eight hundred one billion, eighty-nine million, seven hundred seventy-one thousand, two hundred twenty-one".