30212321985 has 24 divisors (see below), whose sum is σ = 52372203624. Its totient is φ = 16111952640.

The previous prime is 30212321969. The next prime is 30212321999. The reversal of 30212321985 is 58912321203.

30212321985 is a `hidden beast` number, since 30 + 212 + 321 + 98 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 3101121 + 30209220864 = 1761^2 + 173808^2 .

It is not a de Polignac number, because 30212321985 - 2⁴ = 30212321969 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 882895 + ... + 916475.

It is an arithmetic number, because the mean of its divisors is an integer number (2182175151).

Almost surely, 2^30212321985 is an apocalyptic number.

It is an amenable number.

30212321985 is a deficient number, since it is larger than the sum of its proper divisors (22159881639).

30212321985 is a wasteful number, since it uses less digits than its factorization.

30212321985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53585 (or 53582 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The spelling of 30212321985 in words is "thirty billion, two hundred twelve million, three hundred twenty-one thousand, nine hundred eighty-five".