20020221070139 has 2 divisors, whose sum is σ = 20020221070140. Its totient is φ = 20020221070138.

The previous prime is 20020221070127. The next prime is 20020221070169. The reversal of 20020221070139 is 93107012202002.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20020221070139 is a prime.

It is not a weakly prime, because it can be changed into another prime (20020221070169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010110535069 + 10010110535070.

It is an arithmetic number, because the mean of its divisors is an integer number (10010110535070).

Almost surely, 2^{20020221070139} is an apocalyptic number.

20020221070139 is a deficient number, since it is larger than the sum of its proper divisors (1).

20020221070139 is an equidigital number, since it uses as much as digits as its factorization.

20020221070139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 29.

The spelling of 20020221070139 in words is "twenty trillion, twenty billion, two hundred twenty-one million, seventy thousand, one hundred thirty-nine".