421413203312220 has 48 divisors (see below), whose sum is σ = 1348522250600448. Its totient is φ = 96323017899840.

The previous prime is 421413203312203. The next prime is 421413203312329. The reversal of 421413203312220 is 22213302314124.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 501682384476 + ... + 501682385315.

It is an arithmetic number, because the mean of its divisors is an integer number (28094213554176).

Almost surely, 2^{421413203312220} is an apocalyptic number.

It is an amenable number.

421413203312220 is an abundant number, since it is smaller than the sum of its proper divisors (927109047288228).

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

421413203312220 is a wasteful number, since it uses less digits than its factorization.

421413203312220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1003364769810 (or 1003364769808 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 421413203312220 its reverse (22213302314124), we get a palindrome (443626505626344).

The spelling of 421413203312220 in words is "four hundred twenty-one trillion, four hundred thirteen billion, two hundred three million, three hundred twelve thousand, two hundred twenty".