222112120222011 has 4 divisors (see below), whose sum is σ = 296149493629352. Its totient is φ = 148074746814672.

The previous prime is 222112120221997. The next prime is 222112120222019. The reversal of 222112120222011 is 110222021211222.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 222112120222011 - 2¹⁰ = 222112120220987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222112120222019) 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, 37018686703666 + ... + 37018686703671.

It is an arithmetic number, because the mean of its divisors is an integer number (74037373407338).

Almost surely, 2^{222112120222011} is an apocalyptic number.

222112120222011 is a deficient number, since it is larger than the sum of its proper divisors (74037373407341).

222112120222011 is an equidigital number, since it uses as much as digits as its factorization.

222112120222011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74037373407340.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 222112120222011 its reverse (110222021211222), we get a palindrome (332334141433233).

The spelling of 222112120222011 in words is "two hundred twenty-two trillion, one hundred twelve billion, one hundred twenty million, two hundred twenty-two thousand, eleven".