2252041221 has 16 divisors (see below), whose sum is σ = 3281914368. Its totient is φ = 1367462400.

The previous prime is 2252041219. The next prime is 2252041247. The reversal of 2252041221 is 1221402522.

It is not a de Polignac number, because 2252041221 - 2¹ = 2252041219 is a prime.

It is a super-2 number, since 2×2252041221² = 10143379322166341682, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2252041321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 710640 + ... + 713801.

It is an arithmetic number, because the mean of its divisors is an integer number (205119648).

Almost surely, 2^2252041221 is an apocalyptic number.

It is an amenable number.

2252041221 is a deficient number, since it is larger than the sum of its proper divisors (1029873147).

2252041221 is a wasteful number, since it uses less digits than its factorization.

2252041221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1424492.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 2252041221 is about 47455.6763833369. The cubic root of 2252041221 is about 1310.7668375100.

Adding to 2252041221 its reverse (1221402522), we get a palindrome (3473443743).

The spelling of 2252041221 in words is "two billion, two hundred fifty-two million, forty-one thousand, two hundred twenty-one".