202214421420 has 48 divisors (see below), whose sum is σ = 617673143808. Its totient is φ = 49021677760.

The previous prime is 202214421397. The next prime is 202214421427. The reversal of 202214421420 is 24124412202.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (202214421427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153192084 + ... + 153193403.

It is an arithmetic number, because the mean of its divisors is an integer number (12868190496).

Almost surely, 2^202214421420 is an apocalyptic number.

202214421420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202214421420 is an abundant number, since it is smaller than the sum of its proper divisors (415458722388).

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

202214421420 is a wasteful number, since it uses less digits than its factorization.

202214421420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306385510 (or 306385508 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 202214421420 its reverse (24124412202), we get a palindrome (226338833622).

The spelling of 202214421420 in words is "two hundred two billion, two hundred fourteen million, four hundred twenty-one thousand, four hundred twenty".