421401122 has 8 divisors (see below), whose sum is σ = 632305872. Its totient is φ = 210632500.

The previous prime is 421401121. The next prime is 421401137. The reversal of 421401122 is 221104124.

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

It is a self number, because there is not a number n which added to its sum of digits gives 421401122.

It is not an unprimeable number, because it can be changed into a prime (421401121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25904 + ... + 38907.

It is an arithmetic number, because the mean of its divisors is an integer number (79038234).

Almost surely, 2^421401122 is an apocalyptic number.

421401122 is a deficient number, since it is larger than the sum of its proper divisors (210904750).

421401122 is a wasteful number, since it uses less digits than its factorization.

421401122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68064.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 421401122 is about 20528.0569465305. The cubic root of 421401122 is about 749.7190781978.

Adding to 421401122 its reverse (221104124), we get a palindrome (642505246).

The spelling of 421401122 in words is "four hundred twenty-one million, four hundred one thousand, one hundred twenty-two".