1122121021222 has 12 divisors (see below), whose sum is σ = 1743223681836. Its totient is φ = 541713595640.

The previous prime is 1122121021169. The next prime is 1122121021289. The reversal of 1122121021222 is 2221201212211.

It is a self number, because there is not a number n which added to its sum of digits gives 1122121021222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 333565804 + ... + 333569167.

It is an arithmetic number, because the mean of its divisors is an integer number (145268640153).

Almost surely, 2^{1122121021222} is an apocalyptic number.

1122121021222 is a deficient number, since it is larger than the sum of its proper divisors (621102660614).

1122121021222 is an equidigital number, since it uses as much as digits as its factorization.

1122121021222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667135031 (or 667135002 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 1122121021222 its reverse (2221201212211), we get a palindrome (3343322233433).

The spelling of 1122121021222 in words is "one trillion, one hundred twenty-two billion, one hundred twenty-one million, twenty-one thousand, two hundred twenty-two".