30420140312220 has 48 divisors (see below), whose sum is σ = 87157239227520. Its totient is φ = 7923385382976.

The previous prime is 30420140312183. The next prime is 30420140312299. The reversal of 30420140312220 is 2221304102403.

It is a happy number.

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, 5895373450 + ... + 5895378609.

It is an arithmetic number, because the mean of its divisors is an integer number (1815775817240).

Almost surely, 2^{30420140312220} is an apocalyptic number.

30420140312220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30420140312220 is an abundant number, since it is smaller than the sum of its proper divisors (56737098915300).

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

30420140312220 is a wasteful number, since it uses less digits than its factorization.

30420140312220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11790752114 (or 11790752112 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 30420140312220 its reverse (2221304102403), we get a palindrome (32641444414623).

The spelling of 30420140312220 in words is "thirty trillion, four hundred twenty billion, one hundred forty million, three hundred twelve thousand, two hundred twenty".