5662421221 has 16 divisors (see below), whose sum is σ = 5960148480. Its totient is φ = 5369203840.

The previous prime is 5662421213. The next prime is 5662421231. The reversal of 5662421221 is 1221242665.

It is a cyclic number.

It is not a de Polignac number, because 5662421221 - 2³ = 5662421213 is a prime.

It is a super-2 number, since 2×5662421221² = 64126028168062261682, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5662421231) 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, 1278591 + ... + 1283011.

It is an arithmetic number, because the mean of its divisors is an integer number (372509280).

Almost surely, 2^5662421221 is an apocalyptic number.

It is an amenable number.

5662421221 is a deficient number, since it is larger than the sum of its proper divisors (297727259).

5662421221 is a wasteful number, since it uses less digits than its factorization.

5662421221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4916.

The product of its digits is 11520, while the sum is 31.

The square root of 5662421221 is about 75249.0612632477. The cubic root of 5662421221 is about 1782.3817400316.

Adding to 5662421221 its reverse (1221242665), we get a palindrome (6883663886).

The spelling of 5662421221 in words is "five billion, six hundred sixty-two million, four hundred twenty-one thousand, two hundred twenty-one".