30121000012231 has 4 divisors (see below), whose sum is σ = 30121167951000. Its totient is φ = 30120832073464.

The previous prime is 30121000012217. The next prime is 30121000012277. The reversal of 30121000012231 is 13221000012103.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30121000012231 - 2¹¹ = 30121000010183 is a prime.

It is a super-2 number, since 2×30121000012231² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30121000912231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83700061 + ... + 84059158.

It is an arithmetic number, because the mean of its divisors is an integer number (7530291987750).

Almost surely, 2^{30121000012231} is an apocalyptic number.

30121000012231 is a deficient number, since it is larger than the sum of its proper divisors (167938769).

30121000012231 is a wasteful number, since it uses less digits than its factorization.

30121000012231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167938768.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 30121000012231 its reverse (13221000012103), we get a palindrome (43342000024334).

The spelling of 30121000012231 in words is "thirty trillion, one hundred twenty-one billion, twelve thousand, two hundred thirty-one".