30212121232 has 20 divisors (see below), whose sum is σ = 58539086716. Its totient is φ = 15105260160.

The previous prime is 30212121221. The next prime is 30212121271. The reversal of 30212121232 is 23212121203.

It can be written as a sum of positive squares in 2 ways, for example, as 18682515856 + 11529605376 = 136684^2 + 107376^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 366382 + ... + 441202.

Almost surely, 2^30212121232 is an apocalyptic number.

It is an amenable number.

30212121232 is a deficient number, since it is larger than the sum of its proper divisors (28326965484).

30212121232 is a wasteful number, since it uses less digits than its factorization.

30212121232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100066 (or 100060 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 30212121232 its reverse (23212121203), we get a palindrome (53424242435).

The spelling of 30212121232 in words is "thirty billion, two hundred twelve million, one hundred twenty-one thousand, two hundred thirty-two".