1222221033001 has 4 divisors (see below), whose sum is σ = 1222517046100. Its totient is φ = 1221925019904.

The previous prime is 1222221032983. The next prime is 1222221033049. The reversal of 1222221033001 is 1003301222221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 934361957376 + 287859075625 = 966624^2 + 536525^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222221033001 - 2⁷ = 1222221032873 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1222221033001.

It is not an unprimeable number, because it can be changed into a prime (1222221033401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 148000356 + ... + 148008613.

It is an arithmetic number, because the mean of its divisors is an integer number (305629261525).

Almost surely, 2^{1222221033001} is an apocalyptic number.

It is an amenable number.

1222221033001 is a deficient number, since it is larger than the sum of its proper divisors (296013099).

1222221033001 is an equidigital number, since it uses as much as digits as its factorization.

1222221033001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296013098.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1222221033001 its reverse (1003301222221), we get a palindrome (2225522255222).

The spelling of 1222221033001 in words is "one trillion, two hundred twenty-two billion, two hundred twenty-one million, thirty-three thousand, one".