22120210001002 has 4 divisors (see below), whose sum is σ = 33180315001506. Its totient is φ = 11060105000500.

The previous prime is 22120210000939. The next prime is 22120210001003. The reversal of 22120210001002 is 20010001202122.

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., 19697894409361 + 2422315591641 = 4438231^2 + 1556379^2 .

It is not an unprimeable number, because it can be changed into a prime (22120210001003) 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 as a sum of consecutive naturals, namely, 5530052500249 + ... + 5530052500252.

Almost surely, 2^{22120210001002} is an apocalyptic number.

22120210001002 is a deficient number, since it is larger than the sum of its proper divisors (11060105000504).

22120210001002 is a wasteful number, since it uses less digits than its factorization.

22120210001002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11060105000503.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 22120210001002 its reverse (20010001202122), we get a palindrome (42130211203124).

The spelling of 22120210001002 in words is "twenty-two trillion, one hundred twenty billion, two hundred ten million, one thousand, two".