421115266000 has 320 divisors, whose sum is σ = 1199985696000. Its totient is φ = 140914944000.

The previous prime is 421115265983. The next prime is 421115266003. The reversal of 421115266000 is 662511124.

It is a self number, because there is not a number n which added to its sum of digits gives 421115266000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421115266003) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 99811891 + ... + 99816109.

It is an arithmetic number, because the mean of its divisors is an integer number (3749955300).

Almost surely, 2^421115266000 is an apocalyptic number.

421115266000 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421115266000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (599992848000).

421115266000 is an abundant number, since it is smaller than the sum of its proper divisors (778870430000).

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

421115266000 is a wasteful number, since it uses less digits than its factorization.

421115266000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4615 (or 4599 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

Adding to 421115266000 its reverse (662511124), we get a palindrome (421777777124).

The spelling of 421115266000 in words is "four hundred twenty-one billion, one hundred fifteen million, two hundred sixty-six thousand".