30021002012 has 6 divisors (see below), whose sum is σ = 52536753528. Its totient is φ = 15010501004.

The previous prime is 30021001979. The next prime is 30021002023. The reversal of 30021002012 is 21020012003.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30021001984 and 30021002002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3752625248 + ... + 3752625255.

It is an arithmetic number, because the mean of its divisors is an integer number (8756125588).

Almost surely, 2^30021002012 is an apocalyptic number.

It is an amenable number.

30021002012 is a deficient number, since it is larger than the sum of its proper divisors (22515751516).

30021002012 is a wasteful number, since it uses less digits than its factorization.

30021002012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7505250507 (or 7505250505 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 30021002012 its reverse (21020012003), we get a palindrome (51041014015).

Subtracting from 30021002012 its reverse (21020012003), we obtain a palindrome (9000990009).

The spelling of 30021002012 in words is "thirty billion, twenty-one million, two thousand, twelve".