222212212122112 has 40 divisors (see below), whose sum is σ = 444007229737500. Its totient is φ = 111101898522624.

The previous prime is 222212212122101. The next prime is 222212212122137. The reversal of 222212212122112 is 211221212212222.

222212212122112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 221838861793536 + 373350328576 = 14894256^2 + 611024^2 .

It is a nude number because it is divisible by every one of its digits.

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, 5337264 + ... + 21746512.

Almost surely, 2^{222212212122112} is an apocalyptic number.

It is an amenable number.

222212212122112 is a deficient number, since it is larger than the sum of its proper divisors (221795017615388).

222212212122112 is an equidigital number, since it uses as much as digits as its factorization.

222212212122112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16435716 (or 16435700 counting only the distinct ones).

The product of its digits is 1024, while the sum is 25.

Adding to 222212212122112 its reverse (211221212212222), we get a palindrome (433433424334334).

The spelling of 222212212122112 in words is "two hundred twenty-two trillion, two hundred twelve billion, two hundred twelve million, one hundred twenty-two thousand, one hundred twelve".