1101221110212 has 48 divisors (see below), whose sum is σ = 2583080908800. Its totient is φ = 365139200160.

The previous prime is 1101221110207. The next prime is 1101221110237. The reversal of 1101221110212 is 2120111221011.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1101221110191 and 1101221110200.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2426787 + ... + 2844597.

It is an arithmetic number, because the mean of its divisors is an integer number (53814185600).

Almost surely, 2^{1101221110212} is an apocalyptic number.

1101221110212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1101221110212 is an abundant number, since it is smaller than the sum of its proper divisors (1481859798588).

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

1101221110212 is a wasteful number, since it uses less digits than its factorization.

1101221110212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418976 (or 418974 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 1101221110212 its reverse (2120111221011), we get a palindrome (3221332331223).

The spelling of 1101221110212 in words is "one trillion, one hundred one billion, two hundred twenty-one million, one hundred ten thousand, two hundred twelve".