111221021120222 has 16 divisors (see below), whose sum is σ = 180017702333280. Its totient is φ = 51231928719072.

The previous prime is 111221021120191. The next prime is 111221021120303. The reversal of 111221021120222 is 222021120122111.

It is a junction number, because it is equal to n+sod(n) for n = 111221021120194 and 111221021120203.

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, 4202080658 + ... + 4202107125.

It is an arithmetic number, because the mean of its divisors is an integer number (11251106395830).

Almost surely, 2^{111221021120222} is an apocalyptic number.

111221021120222 is a deficient number, since it is larger than the sum of its proper divisors (68796681213058).

111221021120222 is a wasteful number, since it uses less digits than its factorization.

111221021120222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8404188307.

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

Adding to 111221021120222 its reverse (222021120122111), we get a palindrome (333242141242333).

The spelling of 111221021120222 in words is "one hundred eleven trillion, two hundred twenty-one billion, twenty-one million, one hundred twenty thousand, two hundred twenty-two".