1212211211122 has 8 divisors (see below), whose sum is σ = 1818741372336. Its totient is φ = 605964087012.

The previous prime is 1212211211119. The next prime is 1212211211131. The reversal of 1212211211122 is 2211121122121.

It is a happy number.

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

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

It is a self number, because there is not a number n which added to its sum of digits gives 1212211211122.

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, 70748568 + ... + 70765699.

It is an arithmetic number, because the mean of its divisors is an integer number (227342671542).

Almost surely, 2^{1212211211122} is an apocalyptic number.

1212211211122 is a deficient number, since it is larger than the sum of its proper divisors (606530161214).

1212211211122 is a wasteful number, since it uses less digits than its factorization.

1212211211122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141518552.

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

Adding to 1212211211122 its reverse (2211121122121), we get a palindrome (3423332333243).

The spelling of 1212211211122 in words is "one trillion, two hundred twelve billion, two hundred eleven million, two hundred eleven thousand, one hundred twenty-two".