22121021111102 has 4 divisors (see below), whose sum is σ = 33181531666656. Its totient is φ = 11060510555550.

The previous prime is 22121021111083. The next prime is 22121021111107. The reversal of 22121021111102 is 20111112012122.

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 (22121021111107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5530255277774 + ... + 5530255277777.

It is an arithmetic number, because the mean of its divisors is an integer number (8295382916664).

Almost surely, 2^{22121021111102} is an apocalyptic number.

22121021111102 is a deficient number, since it is larger than the sum of its proper divisors (11060510555554).

22121021111102 is a wasteful number, since it uses less digits than its factorization.

22121021111102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11060510555553.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 22121021111102 its reverse (20111112012122), we get a palindrome (42232133123224).

The spelling of 22121021111102 in words is "twenty-two trillion, one hundred twenty-one billion, twenty-one million, one hundred eleven thousand, one hundred two".