111021121022222 has 16 divisors (see below), whose sum is σ = 168221203443072. Its totient is φ = 54947652511200.

The previous prime is 111021121022219. The next prime is 111021121022249. The reversal of 111021121022222 is 222220121120111.

It is a junction number, because it is equal to n+sod(n) for n = 111021121022194 and 111021121022203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65655518 + ... + 67325249.

It is an arithmetic number, because the mean of its divisors is an integer number (10513825215192).

Almost surely, 2^{111021121022222} is an apocalyptic number.

111021121022222 is a deficient number, since it is larger than the sum of its proper divisors (57200082420850).

111021121022222 is a wasteful number, since it uses less digits than its factorization.

111021121022222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132985003.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 111021121022222 its reverse (222220121120111), we get a palindrome (333241242142333).

The spelling of 111021121022222 in words is "one hundred eleven trillion, twenty-one billion, one hundred twenty-one million, twenty-two thousand, two hundred twenty-two".