420002122 has 8 divisors (see below), whose sum is σ = 634536000. Its totient is φ = 208490124.

The previous prime is 420002101. The next prime is 420002123. The reversal of 420002122 is 221200024.

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

It is not an unprimeable number, because it can be changed into a prime (420002123) 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, 755122 + ... + 755677.

It is an arithmetic number, because the mean of its divisors is an integer number (79317000).

Almost surely, 2^420002122 is an apocalyptic number.

420002122 is a deficient number, since it is larger than the sum of its proper divisors (214533878).

420002122 is a wasteful number, since it uses less digits than its factorization.

420002122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1510940.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 420002122 is about 20493.9533033527. The cubic root of 420002122 is about 748.8884999409. Note that the first 3 decimals are identical.

Adding to 420002122 its reverse (221200024), we get a palindrome (641202146).

The spelling of 420002122 in words is "four hundred twenty million, two thousand, one hundred twenty-two".