421102221201200 has 120 divisors (see below), whose sum is σ = 1261337874090240. Its totient is φ = 131252640364800.

The previous prime is 421102221201191. The next prime is 421102221201223. The reversal of 421102221201200 is 2102122201124.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6836044220 + ... + 6836105819.

It is an arithmetic number, because the mean of its divisors is an integer number (10511148950752).

Almost surely, 2^{421102221201200} is an apocalyptic number.

421102221201200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421102221201200 is an abundant number, since it is smaller than the sum of its proper divisors (840235652889040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

421102221201200 is a wasteful number, since it uses less digits than its factorization.

421102221201200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13672150075 (or 13672150064 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 421102221201200 its reverse (2102122201124), we get a palindrome (423204343402324).

The spelling of 421102221201200 in words is "four hundred twenty-one trillion, one hundred two billion, two hundred twenty-one million, two hundred one thousand, two hundred".