22221122210102 has 4 divisors (see below), whose sum is σ = 33331683315156. Its totient is φ = 11110561105050.

The previous prime is 22221122210071. The next prime is 22221122210107. The reversal of 22221122210102 is 20101222112222.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22221122210107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555280552524 + ... + 5555280552527.

It is an arithmetic number, because the mean of its divisors is an integer number (8332920828789).

Almost surely, 2^{22221122210102} is an apocalyptic number.

22221122210102 is a deficient number, since it is larger than the sum of its proper divisors (11110561105054).

22221122210102 is a wasteful number, since it uses less digits than its factorization.

22221122210102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11110561105053.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 22221122210102 its reverse (20101222112222), we get a palindrome (42322344322324).

The spelling of 22221122210102 in words is "twenty-two trillion, two hundred twenty-one billion, one hundred twenty-two million, two hundred ten thousand, one hundred two".