20120220021019 has 2 divisors, whose sum is σ = 20120220021020. Its totient is φ = 20120220021018.

The previous prime is 20120220021001. The next prime is 20120220021071. The reversal of 20120220021019 is 91012002202102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20120220021019 - 2²⁷ = 20120085803291 is a prime.

It is a super-2 number, since 2×20120220021019² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20120226021019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10060110010509 + 10060110010510.

It is an arithmetic number, because the mean of its divisors is an integer number (10060110010510).

Almost surely, 2^{20120220021019} is an apocalyptic number.

20120220021019 is a deficient number, since it is larger than the sum of its proper divisors (1).

20120220021019 is an equidigital number, since it uses as much as digits as its factorization.

20120220021019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 20120220021019 in words is "twenty trillion, one hundred twenty billion, two hundred twenty million, twenty-one thousand, nineteen".