111222021022 has 8 divisors (see below), whose sum is σ = 190666321776. Its totient is φ = 47666580432.

The previous prime is 111222021011. The next prime is 111222021023. The reversal of 111222021022 is 220120222111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 111222020987 and 111222021005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111222021023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3972215023 + ... + 3972215050.

It is an arithmetic number, because the mean of its divisors is an integer number (23833290222).

Almost surely, 2^111222021022 is an apocalyptic number.

111222021022 is a deficient number, since it is larger than the sum of its proper divisors (79444300754).

111222021022 is an equidigital number, since it uses as much as digits as its factorization.

111222021022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7944430082.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 111222021022 its reverse (220120222111), we get a palindrome (331342243133).

The spelling of 111222021022 in words is "one hundred eleven billion, two hundred twenty-two million, twenty-one thousand, twenty-two".