4662122021 has 4 divisors (see below), whose sum is σ = 4703379852. Its totient is φ = 4620864192.

The previous prime is 4662122009. The next prime is 4662122027. The reversal of 4662122021 is 1202212664.

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 1982920900 + 2679201121 = 44530^2 + 51761^2 .

It is a cyclic number.

It is not a de Polignac number, because 4662122021 - 2³⁰ = 3588380197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4662122027) 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, 20628746 + ... + 20628971.

It is an arithmetic number, because the mean of its divisors is an integer number (1175844963).

Almost surely, 2^4662122021 is an apocalyptic number.

It is an amenable number.

4662122021 is a deficient number, since it is larger than the sum of its proper divisors (41257831).

4662122021 is a wasteful number, since it uses less digits than its factorization.

4662122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41257830.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 4662122021 is about 68279.7336037568. The cubic root of 4662122021 is about 1670.5566673045.

Adding to 4662122021 its reverse (1202212664), we get a palindrome (5864334685).

The spelling of 4662122021 in words is "four billion, six hundred sixty-two million, one hundred twenty-two thousand, twenty-one".