30212202120 has 64 divisors (see below), whose sum is σ = 95968177920. Its totient is φ = 7582669824.

The previous prime is 30212202113. The next prime is 30212202169. The reversal of 30212202120 is 2120221203.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 30212202120.

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, 7402912 + ... + 7406991.

It is an arithmetic number, because the mean of its divisors is an integer number (1499502780).

Almost surely, 2^30212202120 is an apocalyptic number.

30212202120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30212202120 is an abundant number, since it is smaller than the sum of its proper divisors (65755975800).

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

30212202120 is a wasteful number, since it uses less digits than its factorization.

30212202120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14809934 (or 14809930 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 30212202120 its reverse (2120221203), we get a palindrome (32332423323).

The spelling of 30212202120 in words is "thirty billion, two hundred twelve million, two hundred two thousand, one hundred twenty".