111221212202222 has 8 divisors (see below), whose sum is σ = 168706333116000. Its totient is φ = 54985767830224.

The previous prime is 111221212202207. The next prime is 111221212202231. The reversal of 111221212202222 is 222202212122111.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312419135222 + ... + 312419135577.

It is an arithmetic number, because the mean of its divisors is an integer number (21088291639500).

Almost surely, 2^{111221212202222} is an apocalyptic number.

111221212202222 is a deficient number, since it is larger than the sum of its proper divisors (57485120913778).

111221212202222 is an equidigital number, since it uses as much as digits as its factorization.

111221212202222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624838270890.

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 111221212202222 its reverse (222202212122111), we get a palindrome (333423424324333).

The spelling of 111221212202222 in words is "one hundred eleven trillion, two hundred twenty-one billion, two hundred twelve million, two hundred two thousand, two hundred twenty-two".