9012221022 has 24 divisors (see below), whose sum is σ = 20967208776. Its totient is φ = 2574920208.

The previous prime is 9012221021. The next prime is 9012221027. The reversal of 9012221022 is 2201222109.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 9012221022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9012221021) 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, 15326613 + ... + 15327200.

It is an arithmetic number, because the mean of its divisors is an integer number (873633699).

Almost surely, 2^9012221022 is an apocalyptic number.

9012221022 is an abundant number, since it is smaller than the sum of its proper divisors (11954987754).

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

9012221022 is a wasteful number, since it uses less digits than its factorization.

9012221022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30653832 (or 30653825 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 9012221022 is about 94932.7183957143. The cubic root of 9012221022 is about 2081.0249064827.

The spelling of 9012221022 in words is "nine billion, twelve million, two hundred twenty-one thousand, twenty-two".