1212221123110 has 8 divisors (see below), whose sum is σ = 2181998021616. Its totient is φ = 484888449240.

The previous prime is 1212221123053. The next prime is 1212221123123. The reversal of 1212221123110 is 113211222121.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60611056146 + ... + 60611056165.

It is an arithmetic number, because the mean of its divisors is an integer number (272749752702).

Almost surely, 2^{1212221123110} is an apocalyptic number.

1212221123110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212221123110 is a deficient number, since it is larger than the sum of its proper divisors (969776898506).

1212221123110 is a wasteful number, since it uses less digits than its factorization.

1212221123110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121222112318.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 1212221123110 its reverse (113211222121), we get a palindrome (1325432345231).

It can be divided in two parts, 1212221 and 123110, that added together give a palindrome (1335331).

The spelling of 1212221123110 in words is "one trillion, two hundred twelve billion, two hundred twenty-one million, one hundred twenty-three thousand, one hundred ten".