30212466256561 has 4 divisors (see below), whose sum is σ = 30309612450624. Its totient is φ = 30115320062500.

The previous prime is 30212466256543. The next prime is 30212466256571. The reversal of 30212466256561 is 16565266421203.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30212466256561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30212466256571) 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, 48573096565 + ... + 48573097186.

It is an arithmetic number, because the mean of its divisors is an integer number (7577403112656).

Almost surely, 2^{30212466256561} is an apocalyptic number.

It is an amenable number.

30212466256561 is a deficient number, since it is larger than the sum of its proper divisors (97146194063).

30212466256561 is an equidigital number, since it uses as much as digits as its factorization.

30212466256561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97146194062.

The product of its (nonzero) digits is 3110400, while the sum is 49.

The spelling of 30212466256561 in words is "thirty trillion, two hundred twelve billion, four hundred sixty-six million, two hundred fifty-six thousand, five hundred sixty-one".