2412612969821 has 2 divisors, whose sum is σ = 2412612969822. Its totient is φ = 2412612969820.

The previous prime is 2412612969757. The next prime is 2412612969841. The reversal of 2412612969821 is 1289692162142.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1712146080100 + 700466889721 = 1308490^2 + 836939^2 .

It is a cyclic number.

It is not a de Polignac number, because 2412612969821 - 2⁶ = 2412612969757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2412612969841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1206306484910 + 1206306484911.

It is an arithmetic number, because the mean of its divisors is an integer number (1206306484911).

Almost surely, 2^{2412612969821} is an apocalyptic number.

It is an amenable number.

2412612969821 is a deficient number, since it is larger than the sum of its proper divisors (1).

2412612969821 is an equidigital number, since it uses as much as digits as its factorization.

2412612969821 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1492992, while the sum is 53.

The spelling of 2412612969821 in words is "two trillion, four hundred twelve billion, six hundred twelve million, nine hundred sixty-nine thousand, eight hundred twenty-one".