20021200011139 has 2 divisors, whose sum is σ = 20021200011140. Its totient is φ = 20021200011138.

The previous prime is 20021200011089. The next prime is 20021200011157. The reversal of 20021200011139 is 93111000212002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20021200011139 - 2⁴¹ = 17822176755587 is a prime.

It is not a weakly prime, because it can be changed into another prime (20021200015139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010600005569 + 10010600005570.

It is an arithmetic number, because the mean of its divisors is an integer number (10010600005570).

Almost surely, 2^{20021200011139} is an apocalyptic number.

20021200011139 is a deficient number, since it is larger than the sum of its proper divisors (1).

20021200011139 is an equidigital number, since it uses as much as digits as its factorization.

20021200011139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 22.

The spelling of 20021200011139 in words is "twenty trillion, twenty-one billion, two hundred million, eleven thousand, one hundred thirty-nine".