30221400020 has 48 divisors (see below), whose sum is σ = 72541418880. Its totient is φ = 10360185984.

The previous prime is 30221399977. The next prime is 30221400029. The reversal of 30221400020 is 2000412203.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 30221399968 and 30221400004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30221400029) 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, 1686347 + ... + 1704173.

It is an arithmetic number, because the mean of its divisors is an integer number (1511279560).

Almost surely, 2^30221400020 is an apocalyptic number.

It is an amenable number.

30221400020 is an abundant number, since it is smaller than the sum of its proper divisors (42320018860).

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

30221400020 is a wasteful number, since it uses less digits than its factorization.

30221400020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29952 (or 29950 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

Adding to 30221400020 its reverse (2000412203), we get a palindrome (32221812223).

The spelling of 30221400020 in words is "thirty billion, two hundred twenty-one million, four hundred thousand, twenty".