1122002210221 has 12 divisors (see below), whose sum is σ = 1193104944468. Its totient is φ = 1054920952832.

The previous prime is 1122002210213. The next prime is 1122002210279. The reversal of 1122002210221 is 1220122002211.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 422246538025 + 699755672196 = 649805^2 + 836514^2 .

It is not a de Polignac number, because 1122002210221 - 2³ = 1122002210213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1122002210195 and 1122002210204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122002280221) 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 11 ways as a sum of consecutive naturals, for example, 1704526 + ... + 2269231.

It is an arithmetic number, because the mean of its divisors is an integer number (99425412039).

Almost surely, 2^{1122002210221} is an apocalyptic number.

It is an amenable number.

1122002210221 is a deficient number, since it is larger than the sum of its proper divisors (71102734247).

1122002210221 is an equidigital number, since it uses as much as digits as its factorization.

1122002210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3974768 (or 3974751 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1122002210221 its reverse (1220122002211), we get a palindrome (2342124212432).

The spelling of 1122002210221 in words is "one trillion, one hundred twenty-two billion, two million, two hundred ten thousand, two hundred twenty-one".