412120008821 has 2 divisors, whose sum is σ = 412120008822. Its totient is φ = 412120008820.

The previous prime is 412120008809. The next prime is 412120008847. The reversal of 412120008821 is 128800021214.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 360343281796 + 51776727025 = 600286^2 + 227545^2 .

It is a cyclic number.

It is not a de Polignac number, because 412120008821 - 2⁶ = 412120008757 is a prime.

It is a super-2 number, since 2×412120008821² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (412123008821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 206060004410 + 206060004411.

It is an arithmetic number, because the mean of its divisors is an integer number (206060004411).

Almost surely, 2^412120008821 is an apocalyptic number.

It is an amenable number.

412120008821 is a deficient number, since it is larger than the sum of its proper divisors (1).

412120008821 is an equidigital number, since it uses as much as digits as its factorization.

412120008821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2048, while the sum is 29.

The spelling of 412120008821 in words is "four hundred twelve billion, one hundred twenty million, eight thousand, eight hundred twenty-one".