1121212220122 has 8 divisors (see below), whose sum is σ = 1682062128000. Its totient is φ = 560524844124.

The previous prime is 1121212220111. The next prime is 1121212220129. The reversal of 1121212220122 is 2210222121211.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1121212220122.

It is not an unprimeable number, because it can be changed into a prime (1121212220129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40615722 + ... + 40643317.

It is an arithmetic number, because the mean of its divisors is an integer number (210257766000).

Almost surely, 2^{1121212220122} is an apocalyptic number.

1121212220122 is a deficient number, since it is larger than the sum of its proper divisors (560849907878).

1121212220122 is an equidigital number, since it uses as much as digits as its factorization.

1121212220122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81265940.

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

Adding to 1121212220122 its reverse (2210222121211), we get a palindrome (3331434341333).

The spelling of 1121212220122 in words is "one trillion, one hundred twenty-one billion, two hundred twelve million, two hundred twenty thousand, one hundred twenty-two".