22122221010002 has 8 divisors (see below), whose sum is σ = 33233533228812. Its totient is φ = 11044376600400.

The previous prime is 22122221009983. The next prime is 22122221010007. The reversal of 22122221010002 is 20001012222122.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 21864330716761 + 257890293241 = 4675931^2 + 507829^2 .

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

It is not an unprimeable number, because it can be changed into a prime (22122221010007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8366950649 + ... + 8366953292.

Almost surely, 2^{22122221010002} is an apocalyptic number.

22122221010002 is a deficient number, since it is larger than the sum of its proper divisors (11111312218810).

22122221010002 is a wasteful number, since it uses less digits than its factorization.

22122221010002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16733904604.

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

Adding to 22122221010002 its reverse (20001012222122), we get a palindrome (42123233232124).

The spelling of 22122221010002 in words is "twenty-two trillion, one hundred twenty-two billion, two hundred twenty-one million, ten thousand, two".