212021031841 has 2 divisors, whose sum is σ = 212021031842. Its totient is φ = 212021031840.

The previous prime is 212021031811. The next prime is 212021031847. The reversal of 212021031841 is 148130120212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 191315260816 + 20705771025 = 437396^2 + 143895^2 .

It is a cyclic number.

It is not a de Polignac number, because 212021031841 - 2⁷ = 212021031713 is a prime.

It is not a weakly prime, because it can be changed into another prime (212021031847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106010515920 + 106010515921.

It is an arithmetic number, because the mean of its divisors is an integer number (106010515921).

Almost surely, 2^212021031841 is an apocalyptic number.

It is an amenable number.

212021031841 is a deficient number, since it is larger than the sum of its proper divisors (1).

212021031841 is an equidigital number, since it uses as much as digits as its factorization.

212021031841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 25.

The spelling of 212021031841 in words is "two hundred twelve billion, twenty-one million, thirty-one thousand, eight hundred forty-one".