22121122210102 has 4 divisors (see below), whose sum is σ = 33181683315156. Its totient is φ = 11060561105050.

The previous prime is 22121122210063. The next prime is 22121122210147. The reversal of 22121122210102 is 20101222112122.

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

It is a self number, because there is not a number n which added to its sum of digits gives 22121122210102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5530280552524 + ... + 5530280552527.

It is an arithmetic number, because the mean of its divisors is an integer number (8295420828789).

Almost surely, 2^{22121122210102} is an apocalyptic number.

22121122210102 is a deficient number, since it is larger than the sum of its proper divisors (11060561105054).

22121122210102 is a wasteful number, since it uses less digits than its factorization.

22121122210102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11060561105053.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 22121122210102 its reverse (20101222112122), we get a palindrome (42222344322224).

The spelling of 22121122210102 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred twenty-two million, two hundred ten thousand, one hundred two".