22001203015936 has 81 divisors (see below), whose sum is σ = 44554508060853. Its totient is φ = 10843036753920.

The previous prime is 22001203015919. The next prime is 22001203015969. The reversal of 22001203015936 is 63951030210022.

The square root of 22001203015936 is 4690544.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 12170720686336 + 9830482329600 = 3488656^2 + 3135360^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5328455920 + ... + 5328460048.

Almost surely, 2^{22001203015936} is an apocalyptic number.

22001203015936 is the 4690544-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22001203015936

22001203015936 is an abundant number, since it is smaller than the sum of its proper divisors (22553305044917).

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

22001203015936 is an frugal number, since it uses more digits than its factorization.

22001203015936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8416 (or 4202 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 34.

Adding to 22001203015936 its reverse (63951030210022), we get a palindrome (85952233225958).

The spelling of 22001203015936 in words is "twenty-two trillion, one billion, two hundred three million, fifteen thousand, nine hundred thirty-six".