421122502 has 8 divisors (see below), whose sum is σ = 659148336. Its totient is φ = 201406392.

The previous prime is 421122497. The next prime is 421122509. The reversal of 421122502 is 205221124.

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 421122502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421122509) 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, 4577373 + ... + 4577464.

It is an arithmetic number, because the mean of its divisors is an integer number (82393542).

Almost surely, 2^421122502 is an apocalyptic number.

421122502 is a deficient number, since it is larger than the sum of its proper divisors (238025834).

421122502 is a wasteful number, since it uses less digits than its factorization.

421122502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9154862.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 421122502 is about 20521.2695026404. The cubic root of 421122502 is about 749.5538098644.

Adding to 421122502 its reverse (205221124), we get a palindrome (626343626).

The spelling of 421122502 in words is "four hundred twenty-one million, one hundred twenty-two thousand, five hundred two".