2221212033 has 12 divisors (see below), whose sum is σ = 3268954260. Its totient is φ = 1452867936.

The previous prime is 2221212013. The next prime is 2221212041. The reversal of 2221212033 is 3302121222.

It can be written as a sum of positive squares in 2 ways, for example, as 1683296784 + 537915249 = 41028^2 + 23193^2 .

It is not a de Polignac number, because 2221212033 - 2¹⁰ = 2221211009 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2221211997 and 2221212015.

It is not an unprimeable number, because it can be changed into a prime (2221212013) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2327838 + ... + 2328791.

It is an arithmetic number, because the mean of its divisors is an integer number (272412855).

Almost surely, 2^2221212033 is an apocalyptic number.

It is an amenable number.

2221212033 is a deficient number, since it is larger than the sum of its proper divisors (1047742227).

2221212033 is a wasteful number, since it uses less digits than its factorization.

2221212033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4656688 (or 4656685 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2221212033 is about 47129.7361864036. The cubic root of 2221212033 is about 1304.7581125643.

Adding to 2221212033 its reverse (3302121222), we get a palindrome (5523333255).

The spelling of 2221212033 in words is "two billion, two hundred twenty-one million, two hundred twelve thousand, thirty-three".