222111120120001 has 24 divisors (see below), whose sum is σ = 267296049726120. Its totient is φ = 183807547080192.

The previous prime is 222111120119963. The next prime is 222111120120023. The reversal of 222111120120001 is 100021021111222.

It can be written as a sum of positive squares in 4 ways, for example, as 58927485427776 + 163183634692225 = 7676424^2 + 12774335^2 .

It is not a de Polignac number, because 222111120120001 - 2²³ = 222111111731393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (222111120126001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27007081 + ... + 34257913.

It is an arithmetic number, because the mean of its divisors is an integer number (11137335405255).

Almost surely, 2^{222111120120001} is an apocalyptic number.

It is an amenable number.

222111120120001 is a deficient number, since it is larger than the sum of its proper divisors (45184929606119).

222111120120001 is a wasteful number, since it uses less digits than its factorization.

222111120120001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7272433 (or 7272426 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 222111120120001 its reverse (100021021111222), we get a palindrome (322132141231223).

The spelling of 222111120120001 in words is "two hundred twenty-two trillion, one hundred eleven billion, one hundred twenty million, one hundred twenty thousand, one".