30000120212 has 24 divisors (see below), whose sum is σ = 53499780936. Its totient is φ = 14714563968.

The previous prime is 30000120097. The next prime is 30000120229. The reversal of 30000120212 is 21202100003.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4727387536 + 25272732676 = 68756^2 + 158974^2 .

It is a junction number, because it is equal to n+sod(n) for n = 30000120193 and 30000120202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2418458 + ... + 2430830.

It is an arithmetic number, because the mean of its divisors is an integer number (2229157539).

Almost surely, 2^30000120212 is an apocalyptic number.

It is an amenable number.

30000120212 is a deficient number, since it is larger than the sum of its proper divisors (23499660724).

30000120212 is a wasteful number, since it uses less digits than its factorization.

30000120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23867 (or 23865 counting only the distinct ones).

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

Adding to 30000120212 its reverse (21202100003), we get a palindrome (51202220215).

The spelling of 30000120212 in words is "thirty billion, one hundred twenty thousand, two hundred twelve".