22120001002 has 16 divisors (see below), whose sum is σ = 37770121152. Its totient is φ = 9617391520.

The previous prime is 22120000951. The next prime is 22120001009. The reversal of 22120001002 is 20010002122.

It is a self number, because there is not a number n which added to its sum of digits gives 22120001002.

It is not an unprimeable number, because it can be changed into a prime (22120001009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21857203 + ... + 21858214.

It is an arithmetic number, because the mean of its divisors is an integer number (2360632572).

Almost surely, 2^22120001002 is an apocalyptic number.

22120001002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22120001002 is a deficient number, since it is larger than the sum of its proper divisors (15650120150).

22120001002 is a wasteful number, since it uses less digits than its factorization.

22120001002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43715453.

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 22120001002 its reverse (20010002122), we get a palindrome (42130003124).

The spelling of 22120001002 in words is "twenty-two billion, one hundred twenty million, one thousand, two".