30212123208 has 32 divisors (see below), whose sum is σ = 78134803200. Its totient is φ = 9723441728.

The previous prime is 30212123197. The next prime is 30212123281. The reversal of 30212123208 is 80232121203.

It is a happy number.

It is a super-2 number, since 2×30212123208² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21703416 + ... + 21704807.

It is an arithmetic number, because the mean of its divisors is an integer number (2441712600).

Almost surely, 2^30212123208 is an apocalyptic number.

It is an amenable number.

30212123208 is an abundant number, since it is smaller than the sum of its proper divisors (47922679992).

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

30212123208 is a wasteful number, since it uses less digits than its factorization.

30212123208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43408261 (or 43408257 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The spelling of 30212123208 in words is "thirty billion, two hundred twelve million, one hundred twenty-three thousand, two hundred eight".