111212012112022 has 16 divisors (see below), whose sum is σ = 168871647441600. Its totient is φ = 54922790887360.

The previous prime is 111212012111999. The next prime is 111212012112043. The reversal of 111212012112022 is 220211210212111.

It is a happy number.

It is a super-2 number, since 2×111212012112022² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 331812622 + ... + 332147617.

It is an arithmetic number, because the mean of its divisors is an integer number (10554477965100).

Almost surely, 2^{111212012112022} is an apocalyptic number.

111212012112022 is a deficient number, since it is larger than the sum of its proper divisors (57659635329578).

111212012112022 is an equidigital number, since it uses as much as digits as its factorization.

111212012112022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 663961271.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 111212012112022 its reverse (220211210212111), we get a palindrome (331423222324133).

The spelling of 111212012112022 in words is "one hundred eleven trillion, two hundred twelve billion, twelve million, one hundred twelve thousand, twenty-two".