1101212221012 has 12 divisors (see below), whose sum is σ = 2028548828320. Its totient is φ = 521626841496.

The previous prime is 1101212220989. The next prime is 1101212221013. The reversal of 1101212221012 is 2101222121011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101212221013) by changing a digit.

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, 7244817168 + ... + 7244817319.

Almost surely, 2^{1101212221012} is an apocalyptic number.

It is an amenable number.

1101212221012 is a deficient number, since it is larger than the sum of its proper divisors (927336607308).

1101212221012 is a wasteful number, since it uses less digits than its factorization.

1101212221012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14489634510 (or 14489634508 counting only the distinct ones).

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

Adding to 1101212221012 its reverse (2101222121011), we get a palindrome (3202434342023).

The spelling of 1101212221012 in words is "one trillion, one hundred one billion, two hundred twelve million, two hundred twenty-one thousand, twelve".