420422101 has 16 divisors (see below), whose sum is σ = 484165440. Its totient is φ = 361048320.

The previous prime is 420422089. The next prime is 420422113. The reversal of 420422101 is 101224024.

It is an interprime number because it is at equal distance from previous prime (420422089) and next prime (420422113).

It is a cyclic number.

It is not a de Polignac number, because 420422101 - 2¹¹ = 420420053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420422131) 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, 75261 + ... + 80653.

It is an arithmetic number, because the mean of its divisors is an integer number (30260340).

Almost surely, 2^420422101 is an apocalyptic number.

It is an amenable number.

420422101 is a deficient number, since it is larger than the sum of its proper divisors (63743339).

420422101 is a wasteful number, since it uses less digits than its factorization.

420422101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5796.

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

The square root of 420422101 is about 20504.1971557045. The cubic root of 420422101 is about 749.1380325438.

Adding to 420422101 its reverse (101224024), we get a palindrome (521646125).

The spelling of 420422101 in words is "four hundred twenty million, four hundred twenty-two thousand, one hundred one".