32002221420 has 96 divisors (see below), whose sum is σ = 107221141440. Its totient is φ = 7877468160.

The previous prime is 32002221397. The next prime is 32002221431. The reversal of 32002221420 is 2412220023.

32002221420 is a `hidden beast` number, since 3 + 20 + 0 + 2 + 221 + 420 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 32002221393 and 32002221402.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2272341 + ... + 2286380.

It is an arithmetic number, because the mean of its divisors is an integer number (1116886890).

Almost surely, 2^32002221420 is an apocalyptic number.

32002221420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

32002221420 is an abundant number, since it is smaller than the sum of its proper divisors (75218920020).

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

32002221420 is a wasteful number, since it uses less digits than its factorization.

32002221420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4558752 (or 4558744 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 32002221420 its reverse (2412220023), we get a palindrome (34414441443).

The spelling of 32002221420 in words is "thirty-two billion, two million, two hundred twenty-one thousand, four hundred twenty".