30210021120 has 144 divisors (see below), whose sum is σ = 97439785632. Its totient is φ = 7976140800.

The previous prime is 30210021077. The next prime is 30210021157. The reversal of 30210021120 is 2112001203.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 30210021096 and 30210021105.

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, 348894 + ... + 426786.

It is an arithmetic number, because the mean of its divisors is an integer number (676665178).

Almost surely, 2^30210021120 is an apocalyptic number.

30210021120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30210021120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48719892816).

30210021120 is an abundant number, since it is smaller than the sum of its proper divisors (67229764512).

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

30210021120 is a wasteful number, since it uses less digits than its factorization.

30210021120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78018 (or 78004 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 30210021120 its reverse (2112001203), we get a palindrome (32322022323).

The spelling of 30210021120 in words is "thirty billion, two hundred ten million, twenty-one thousand, one hundred twenty".