30212220987 has 36 divisors (see below), whose sum is σ = 47291746320. Its totient is φ = 18476172576.

The previous prime is 30212220977. The next prime is 30212221009. The reversal of 30212220987 is 78902221203.

It is not a de Polignac number, because 30212220987 - 2⁶ = 30212220923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30212220947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3103714 + ... + 3113432.

It is an arithmetic number, because the mean of its divisors is an integer number (1313659620).

Almost surely, 2^30212220987 is an apocalyptic number.

30212220987 is a deficient number, since it is larger than the sum of its proper divisors (17079525333).

30212220987 is a wasteful number, since it uses less digits than its factorization.

30212220987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10064 (or 9898 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 30212220987 in words is "thirty billion, two hundred twelve million, two hundred twenty thousand, nine hundred eighty-seven".