2221021223033 has 4 divisors (see below), whose sum is σ = 2221161729780. Its totient is φ = 2220880716288.

The previous prime is 2221021223027. The next prime is 2221021223119. The reversal of 2221021223033 is 3303221201222.

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 76647583609 + 2144373639424 = 276853^2 + 1464368^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221021223033 - 2²⁴ = 2221004445817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221021273033) 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, 70229660 + ... + 70261277.

It is an arithmetic number, because the mean of its divisors is an integer number (555290432445).

Almost surely, 2^{2221021223033} is an apocalyptic number.

It is an amenable number.

2221021223033 is a deficient number, since it is larger than the sum of its proper divisors (140506747).

2221021223033 is a wasteful number, since it uses less digits than its factorization.

2221021223033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140506746.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 2221021223033 its reverse (3303221201222), we get a palindrome (5524242424255).

The spelling of 2221021223033 in words is "two trillion, two hundred twenty-one billion, twenty-one million, two hundred twenty-three thousand, thirty-three".