1102221101212 has 72 divisors (see below), whose sum is σ = 2451335419008. Its totient is φ = 428814741600.

The previous prime is 1102221101197. The next prime is 1102221101221. The reversal of 1102221101212 is 2121011222011.

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 23 ways as a sum of consecutive naturals, for example, 1119873 + ... + 1859719.

It is an arithmetic number, because the mean of its divisors is an integer number (34046325264).

Almost surely, 2^{1102221101212} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1102221101212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1225667709504).

1102221101212 is an abundant number, since it is smaller than the sum of its proper divisors (1349114317796).

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

1102221101212 is a wasteful number, since it uses less digits than its factorization.

1102221101212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740567 (or 740558 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1102221101212 its reverse (2121011222011), we get a palindrome (3223232323223).

The spelling of 1102221101212 in words is "one trillion, one hundred two billion, two hundred twenty-one million, one hundred one thousand, two hundred twelve".