9810022221002 has 4 divisors (see below), whose sum is σ = 14715033331506. Its totient is φ = 4905011110500.

The previous prime is 9810022220989. The next prime is 9810022221007. The reversal of 9810022221002 is 2001222200189.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9179330527081 + 630691693921 = 3029741^2 + 794161^2 .

It is not an unprimeable number, because it can be changed into a prime (9810022221007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2452505555249 + ... + 2452505555252.

Almost surely, 2^{9810022221002} is an apocalyptic number.

9810022221002 is a deficient number, since it is larger than the sum of its proper divisors (4905011110504).

9810022221002 is a wasteful number, since it uses less digits than its factorization.

9810022221002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4905011110503.

The product of its (nonzero) digits is 2304, while the sum is 29.

The spelling of 9810022221002 in words is "nine trillion, eight hundred ten billion, twenty-two million, two hundred twenty-one thousand, two".