20021200011079 has 2 divisors, whose sum is σ = 20021200011080. Its totient is φ = 20021200011078.

The previous prime is 20021200011067. The next prime is 20021200011089. The reversal of 20021200011079 is 97011000212002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20021200011079 - 2¹⁷ = 20021199880007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20021200011089) 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, 10010600005539 + 10010600005540.

It is an arithmetic number, because the mean of its divisors is an integer number (10010600005540).

Almost surely, 2^{20021200011079} is an apocalyptic number.

20021200011079 is a deficient number, since it is larger than the sum of its proper divisors (1).

20021200011079 is an equidigital number, since it uses as much as digits as its factorization.

20021200011079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 25.

The spelling of 20021200011079 in words is "twenty trillion, twenty-one billion, two hundred million, eleven thousand, seventy-nine".