30111220012 has 24 divisors (see below), whose sum is σ = 56083433616. Its totient is φ = 14096560128.

The previous prime is 30111220001. The next prime is 30111220021. The reversal of 30111220012 is 21002211103.

It is a super-2 number, since 2×30111220012² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30111219974 and 30111220001.

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, 1134058 + ... + 1160305.

It is an arithmetic number, because the mean of its divisors is an integer number (2336809734).

Almost surely, 2^30111220012 is an apocalyptic number.

It is an amenable number.

30111220012 is a deficient number, since it is larger than the sum of its proper divisors (25972213604).

30111220012 is a wasteful number, since it uses less digits than its factorization.

30111220012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2294577 (or 2294575 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 30111220012 its reverse (21002211103), we get a palindrome (51113431115).

The spelling of 30111220012 in words is "thirty billion, one hundred eleven million, two hundred twenty thousand, twelve".