1121212022210 has 128 divisors (see below), whose sum is σ = 2361136988160. Its totient is φ = 375436030464.

The previous prime is 1121212022141. The next prime is 1121212022267. The reversal of 1121212022210 is 122202121211.

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 63 ways as a sum of consecutive naturals, for example, 244643579 + ... + 244648161.

It is an arithmetic number, because the mean of its divisors is an integer number (18446382720).

Almost surely, 2^{1121212022210} is an apocalyptic number.

1121212022210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121212022210 is an abundant number, since it is smaller than the sum of its proper divisors (1239924965950).

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

1121212022210 is a wasteful number, since it uses less digits than its factorization.

1121212022210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5160.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1121212022210 its reverse (122202121211), we get a palindrome (1243414143421).

Subtracting from 1121212022210 its reverse (122202121211), we obtain a palindrome (999009900999).

The spelling of 1121212022210 in words is "one trillion, one hundred twenty-one billion, two hundred twelve million, twenty-two thousand, two hundred ten".