1102212222021 has 24 divisors (see below), whose sum is σ = 1610096169240. Its totient is φ = 726496252416.

The previous prime is 1102212222019. The next prime is 1102212222043. The reversal of 1102212222021 is 1202222122011.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 45160925121 + 1057051296900 = 212511^2 + 1028130^2 .

It is not a de Polignac number, because 1102212222021 - 2¹ = 1102212222019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1102212221985 and 1102212222003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102212222011) 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 23 ways as a sum of consecutive naturals, for example, 12191841 + ... + 12281913.

It is an arithmetic number, because the mean of its divisors is an integer number (67087340385).

Almost surely, 2^{1102212222021} is an apocalyptic number.

It is an amenable number.

1102212222021 is a deficient number, since it is larger than the sum of its proper divisors (507883947219).

1102212222021 is a wasteful number, since it uses less digits than its factorization.

1102212222021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105445 (or 105442 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1102212222021 its reverse (1202222122011), we get a palindrome (2304434344032).

The spelling of 1102212222021 in words is "one trillion, one hundred two billion, two hundred twelve million, two hundred twenty-two thousand, twenty-one".