30211211121 has 24 divisors (see below), whose sum is σ = 50462685504. Its totient is φ = 15935582880.

The previous prime is 30211211081. The next prime is 30211211143. The reversal of 30211211121 is 12111211203.

It is not a de Polignac number, because 30211211121 - 2⁶ = 30211211057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30211211121.

It is not an unprimeable number, because it can be changed into a prime (30211211161) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7902645 + ... + 7906466.

It is an arithmetic number, because the mean of its divisors is an integer number (2102611896).

Almost surely, 2^30211211121 is an apocalyptic number.

It is an amenable number.

30211211121 is a deficient number, since it is larger than the sum of its proper divisors (20251474383).

30211211121 is a wasteful number, since it uses less digits than its factorization.

30211211121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15809141 (or 15809134 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 30211211121 its reverse (12111211203), we get a palindrome (42322422324).

The spelling of 30211211121 in words is "thirty billion, two hundred eleven million, two hundred eleven thousand, one hundred twenty-one".