22111211111102 has 4 divisors (see below), whose sum is σ = 33166816666656. Its totient is φ = 11055605555550.

The previous prime is 22111211110973. The next prime is 22111211111183. The reversal of 22111211111102 is 20111111211122.

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

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, 5527802777774 + ... + 5527802777777.

It is an arithmetic number, because the mean of its divisors is an integer number (8291704166664).

Almost surely, 2^{22111211111102} is an apocalyptic number.

22111211111102 is a deficient number, since it is larger than the sum of its proper divisors (11055605555554).

22111211111102 is a wasteful number, since it uses less digits than its factorization.

22111211111102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11055605555553.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 22111211111102 its reverse (20111111211122), we get a palindrome (42222322322224).

The spelling of 22111211111102 in words is "twenty-two trillion, one hundred eleven billion, two hundred eleven million, one hundred eleven thousand, one hundred two".