22220111002 has 4 divisors (see below), whose sum is σ = 33330166506.
Its totient is φ = 11110055500.
The previous prime is 22220110987. The next prime is 22220111033. The reversal of 22220111002 is 20011102222.
Adding to 22220111002 its reverse (20011102222), we get a palindrome (42231213224).
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., 11642194201 + 10577916801 = 107899^2 + 102849^2
It is an unprimeable number.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555027749 + ... + 5555027752.
Almost surely, 222220111002 is an apocalyptic number.
22220111002 is a deficient number, since it is larger than the sum of its proper divisors (11110055504).
22220111002 is a wasteful number, since it uses less digits than its factorization.
22220111002 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 11110055503.
The product of its (nonzero) digits is 32, while the sum is 13.
The spelling of 22220111002 in words is "twenty-two billion, two hundred twenty million, one hundred eleven thousand, two".