1001120221222 has 16 divisors (see below), whose sum is σ = 1638379051344. Its totient is φ = 455004000000.

The previous prime is 1001120221169. The next prime is 1001120221223. The reversal of 1001120221222 is 2221220211001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1001120221196 and 1001120221205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001120221223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2329779 + ... + 2725822.

It is an arithmetic number, because the mean of its divisors is an integer number (102398690709).

Almost surely, 2^{1001120221222} is an apocalyptic number.

1001120221222 is a deficient number, since it is larger than the sum of its proper divisors (637258830122).

1001120221222 is a wasteful number, since it uses less digits than its factorization.

1001120221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5064615.

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

Adding to 1001120221222 its reverse (2221220211001), we get a palindrome (3222340432223).

The spelling of 1001120221222 in words is "one trillion, one billion, one hundred twenty million, two hundred twenty-one thousand, two hundred twenty-two".