111212222022002 has 8 divisors (see below), whose sum is σ = 166826685285036. Its totient is φ = 55603326926992.

The previous prime is 111212222022001. The next prime is 111212222022017. The reversal of 111212222022002 is 200220222212111.

It can be written as a sum of positive squares in 2 ways, for example, as 100762267117681 + 10449954904321 = 10038041^2 + 3232639^2 .

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

It is not an unprimeable number, because it can be changed into a prime (111212222022001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1391992073 + ... + 1392071964.

Almost surely, 2^{111212222022002} is an apocalyptic number.

111212222022002 is a deficient number, since it is larger than the sum of its proper divisors (55614463263034).

111212222022002 is a wasteful number, since it uses less digits than its factorization.

111212222022002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2784084012.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 111212222022002 its reverse (200220222212111), we get a palindrome (311432444234113).

The spelling of 111212222022002 in words is "one hundred eleven trillion, two hundred twelve billion, two hundred twenty-two million, twenty-two thousand, two".