1301111211222 has 12 divisors (see below), whose sum is σ = 2819074291020. Its totient is φ = 433703737068.

The previous prime is 1301111211181. The next prime is 1301111211233. The reversal of 1301111211222 is 2221121111031.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 72283956179 = 1301111211222 / (1 + 3 + 0 + 1 + 1 + 1 + 1 + 2 + 1 + 1 + 2 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 1301111211195 and 1301111211204.

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 5 ways as a sum of consecutive naturals, for example, 36141978072 + ... + 36141978107.

It is an arithmetic number, because the mean of its divisors is an integer number (234922857585).

Almost surely, 2^{1301111211222} is an apocalyptic number.

1301111211222 is an abundant number, since it is smaller than the sum of its proper divisors (1517963079798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1301111211222 is a wasteful number, since it uses less digits than its factorization.

1301111211222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72283956187 (or 72283956184 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 1301111211222 its reverse (2221121111031), we get a palindrome (3522232322253).

The spelling of 1301111211222 in words is "one trillion, three hundred one billion, one hundred eleven million, two hundred eleven thousand, two hundred twenty-two".