4215321134220 has 192 divisors, whose sum is σ = 13956598656000. Its totient is φ = 930115630080.

The previous prime is 4215321134201. The next prime is 4215321134287. The reversal of 4215321134220 is 224311235124.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 78180831 + ... + 78234729.

It is an arithmetic number, because the mean of its divisors is an integer number (72690618000).

Almost surely, 2^{4215321134220} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4215321134220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6978299328000).

4215321134220 is an abundant number, since it is smaller than the sum of its proper divisors (9741277521780).

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

4215321134220 is a wasteful number, since it uses less digits than its factorization.

4215321134220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60368 (or 60366 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 4215321134220 its reverse (224311235124), we get a palindrome (4439632369344).

The spelling of 4215321134220 in words is "four trillion, two hundred fifteen billion, three hundred twenty-one million, one hundred thirty-four thousand, two hundred twenty".