9822002121 has 12 divisors (see below), whose sum is σ = 14200213248. Its totient is φ = 6542058264.

The previous prime is 9822002053. The next prime is 9822002137. The reversal of 9822002121 is 1212002289.

It is not a de Polignac number, because 9822002121 - 2¹¹ = 9822000073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9822002221) 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, 484785 + ... + 504638.

It is an arithmetic number, because the mean of its divisors is an integer number (1183351104).

Almost surely, 2^9822002121 is an apocalyptic number.

It is an amenable number.

9822002121 is a deficient number, since it is larger than the sum of its proper divisors (4378211127).

9822002121 is a wasteful number, since it uses less digits than its factorization.

9822002121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990532 (or 990529 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 9822002121 is about 99106.0145551217. The cubic root of 9822002121 is about 2141.5752603003.

The spelling of 9822002121 in words is "nine billion, eight hundred twenty-two million, two thousand, one hundred twenty-one".