422220351 has 8 divisors (see below), whose sum is σ = 643383424. Its totient is φ = 241268760.

The previous prime is 422220287. The next prime is 422220373. The reversal of 422220351 is 153022224.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 422220351 - 2⁶ = 422220287 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 20105731 = 422220351 / (4 + 2 + 2 + 2 + 2 + 0 + 3 + 5 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422220391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10052845 + ... + 10052886.

It is an arithmetic number, because the mean of its divisors is an integer number (80422928).

Almost surely, 2^422220351 is an apocalyptic number.

422220351 is a deficient number, since it is larger than the sum of its proper divisors (221163073).

422220351 is a wasteful number, since it uses less digits than its factorization.

422220351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20105741.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 422220351 is about 20548.0011436636. The cubic root of 422220351 is about 750.2045966263.

Adding to 422220351 its reverse (153022224), we get a palindrome (575242575).

The spelling of 422220351 in words is "four hundred twenty-two million, two hundred twenty thousand, three hundred fifty-one".