1102211121220 has 36 divisors (see below), whose sum is σ = 2544194767212. Its totient is φ = 400804043200.

The previous prime is 1102211121169. The next prime is 1102211121227. The reversal of 1102211121220 is 221211122011.

It can be written as a sum of positive squares in 2 ways, for example, as 850851277056 + 251359844164 = 922416^2 + 501358^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1102211121194 and 1102211121203.

It is not an unprimeable number, because it can be changed into a prime (1102211121227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 227727151 + ... + 227731990.

It is an arithmetic number, because the mean of its divisors is an integer number (70672076867).

Almost surely, 2^{1102211121220} is an apocalyptic number.

1102211121220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1102211121220 is an abundant number, since it is smaller than the sum of its proper divisors (1441983645992).

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

1102211121220 is a wasteful number, since it uses less digits than its factorization.

1102211121220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455459172 (or 455459159 counting only the distinct ones).

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

Adding to 1102211121220 its reverse (221211122011), we get a palindrome (1323422243231).

The spelling of 1102211121220 in words is "one trillion, one hundred two billion, two hundred eleven million, one hundred twenty-one thousand, two hundred twenty".