22121111102102 has 16 divisors (see below), whose sum is σ = 33333816107520. Its totient is φ = 11009876050152.

The previous prime is 22121111102099. The next prime is 22121111102107. The reversal of 22121111102102 is 20120111112122.

It is a super-2 number, since 2×22121111102102² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22121111102107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8048168 + ... + 10441035.

It is an arithmetic number, because the mean of its divisors is an integer number (2083363506720).

Almost surely, 2^{22121111102102} is an apocalyptic number.

22121111102102 is a deficient number, since it is larger than the sum of its proper divisors (11212705005418).

22121111102102 is a wasteful number, since it uses less digits than its factorization.

22121111102102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18491947.

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

Adding to 22121111102102 its reverse (20120111112122), we get a palindrome (42241222214224).

The spelling of 22121111102102 in words is "twenty-two trillion, one hundred twenty-one billion, one hundred eleven million, one hundred two thousand, one hundred two".