1212022221110 has 8 divisors (see below), whose sum is σ = 2181639998016. Its totient is φ = 484808888440.

The previous prime is 1212022221071. The next prime is 1212022221121. The reversal of 1212022221110 is 111222202121.

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

It is a Curzon number.

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 3 ways as a sum of consecutive naturals, for example, 60601111046 + ... + 60601111065.

It is an arithmetic number, because the mean of its divisors is an integer number (272704999752).

Almost surely, 2^{1212022221110} is an apocalyptic number.

1212022221110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212022221110 is a deficient number, since it is larger than the sum of its proper divisors (969617776906).

1212022221110 is a wasteful number, since it uses less digits than its factorization.

1212022221110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121202222118.

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

Adding to 1212022221110 its reverse (111222202121), we get a palindrome (1323244423231).

The spelling of 1212022221110 in words is "one trillion, two hundred twelve billion, twenty-two million, two hundred twenty-one thousand, one hundred ten".