30000212001221 has 32 divisors (see below), whose sum is σ = 39604487535360. Its totient is φ = 22000873651200.

The previous prime is 30000212001217. The next prime is 30000212001229. The reversal of 30000212001221 is 12210021200003.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 30000212001221 - 2² = 30000212001217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30000212001196 and 30000212001205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30000212001229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36387011 + ... + 37202351.

It is an arithmetic number, because the mean of its divisors is an integer number (1237640235480).

Almost surely, 2^{30000212001221} is an apocalyptic number.

It is an amenable number.

30000212001221 is a deficient number, since it is larger than the sum of its proper divisors (9604275534139).

30000212001221 is a wasteful number, since it uses less digits than its factorization.

30000212001221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843485.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 30000212001221 its reverse (12210021200003), we get a palindrome (42210233201224).

The spelling of 30000212001221 in words is "thirty trillion, two hundred twelve million, one thousand, two hundred twenty-one".