1102212221221 has 8 divisors (see below), whose sum is σ = 1174208042304. Its totient is φ = 1031011934400.

The previous prime is 1102212221213. The next prime is 1102212221237. The reversal of 1102212221221 is 1221222122011.

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

It is a cyclic number.

It is not a de Polignac number, because 1102212221221 - 2³ = 1102212221213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102212221021) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 198880705 + ... + 198886246.

It is an arithmetic number, because the mean of its divisors is an integer number (146776005288).

Almost surely, 2^{1102212221221} is an apocalyptic number.

It is an amenable number.

1102212221221 is a deficient number, since it is larger than the sum of its proper divisors (71995821083).

1102212221221 is a wasteful number, since it uses less digits than its factorization.

1102212221221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397767131.

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

Adding to 1102212221221 its reverse (1221222122011), we get a palindrome (2323434343232).

The spelling of 1102212221221 in words is "one trillion, one hundred two billion, two hundred twelve million, two hundred twenty-one thousand, two hundred twenty-one".