421221545122 has 8 divisors (see below), whose sum is σ = 722094077376. Its totient is φ = 180523519332.

The previous prime is 421221545093. The next prime is 421221545183. The reversal of 421221545122 is 221545122124.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15043626598 + ... + 15043626625.

It is an arithmetic number, because the mean of its divisors is an integer number (90261759672).

Almost surely, 2^421221545122 is an apocalyptic number.

421221545122 is a deficient number, since it is larger than the sum of its proper divisors (300872532254).

421221545122 is a wasteful number, since it uses less digits than its factorization.

421221545122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30087253232.

The product of its digits is 12800, while the sum is 31.

Adding to 421221545122 its reverse (221545122124), we get a palindrome (642766667246).

The spelling of 421221545122 in words is "four hundred twenty-one billion, two hundred twenty-one million, five hundred forty-five thousand, one hundred twenty-two".