22001221021022 has 8 divisors (see below), whose sum is σ = 33005982207072. Its totient is φ = 10999226952000.

The previous prime is 22001221021009. The next prime is 22001221021051. The reversal of 22001221021022 is 22012012210022.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 691759379 + ... + 691791182.

It is an arithmetic number, because the mean of its divisors is an integer number (4125747775884).

Almost surely, 2^{22001221021022} is an apocalyptic number.

22001221021022 is a deficient number, since it is larger than the sum of its proper divisors (11004761186050).

22001221021022 is a wasteful number, since it uses less digits than its factorization.

22001221021022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1383558514.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22001221021022 its reverse (22012012210022), we get a palindrome (44013233231044).

The spelling of 22001221021022 in words is "twenty-two trillion, one billion, two hundred twenty-one million, twenty-one thousand, twenty-two".