422210401 has 4 divisors (see below), whose sum is σ = 426390804. Its totient is φ = 418030000.

The previous prime is 422210377. The next prime is 422210407. The reversal of 422210401 is 104012224.

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 399400225 + 22810176 = 19985^2 + 4776^2 .

It is a cyclic number.

It is not a de Polignac number, because 422210401 - 2⁹ = 422209889 is a prime.

It is a super-3 number, since 3×422210401³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (422210407) 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, 2090050 + ... + 2090251.

It is an arithmetic number, because the mean of its divisors is an integer number (106597701).

Almost surely, 2^422210401 is an apocalyptic number.

It is an amenable number.

422210401 is a deficient number, since it is larger than the sum of its proper divisors (4180403).

422210401 is a wasteful number, since it uses less digits than its factorization.

422210401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4180402.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 422210401 is about 20547.7590262296. The cubic root of 422210401 is about 750.1987034994.

Adding to 422210401 its reverse (104012224), we get a palindrome (526222625).

The spelling of 422210401 in words is "four hundred twenty-two million, two hundred ten thousand, four hundred one".