1000021241077 has 2 divisors, whose sum is σ = 1000021241078. Its totient is φ = 1000021241076.

The previous prime is 1000021241047. The next prime is 1000021241137. The reversal of 1000021241077 is 7701421200001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 948804572356 + 51216668721 = 974066^2 + 226311^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000021241077 - 2⁷ = 1000021240949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000021241017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500010620538 + 500010620539.

It is an arithmetic number, because the mean of its divisors is an integer number (500010620539).

Almost surely, 2^{1000021241077} is an apocalyptic number.

It is an amenable number.

1000021241077 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000021241077 is an equidigital number, since it uses as much as digits as its factorization.

1000021241077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 784, while the sum is 25.

Adding to 1000021241077 its reverse (7701421200001), we get a palindrome (8701442441078).

The spelling of 1000021241077 in words is "one trillion, twenty-one million, two hundred forty-one thousand, seventy-seven".