22011221020002 has 32 divisors (see below), whose sum is σ = 45482771489280. Its totient is φ = 7094104709760.

The previous prime is 22011221020001. The next prime is 22011221020031. The reversal of 22011221020002 is 20002012211022.

It is not an unprimeable number, because it can be changed into a prime (22011221020001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52199173 + ... + 52619160.

It is an arithmetic number, because the mean of its divisors is an integer number (1421336609040).

Almost surely, 2^{22011221020002} is an apocalyptic number.

22011221020002 is an abundant number, since it is smaller than the sum of its proper divisors (23471550469278).

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

22011221020002 is a wasteful number, since it uses less digits than its factorization.

22011221020002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104819498.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22011221020002 its reverse (20002012211022), we get a palindrome (42013233231024).

The spelling of 22011221020002 in words is "twenty-two trillion, eleven billion, two hundred twenty-one million, twenty thousand, two".