20000120212097 has 2 divisors, whose sum is σ = 20000120212098. Its totient is φ = 20000120212096.

The previous prime is 20000120212003. The next prime is 20000120212103. The reversal of 20000120212097 is 79021202100002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14381660643856 + 5618459568241 = 3792316^2 + 2370329^2 .

It is a cyclic number.

It is not a de Polignac number, because 20000120212097 - 2¹² = 20000120208001 is a prime.

It is not a weakly prime, because it can be changed into another prime (20000140212097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000060106048 + 10000060106049.

It is an arithmetic number, because the mean of its divisors is an integer number (10000060106049).

Almost surely, 2^{20000120212097} is an apocalyptic number.

It is an amenable number.

20000120212097 is a deficient number, since it is larger than the sum of its proper divisors (1).

20000120212097 is an equidigital number, since it uses as much as digits as its factorization.

20000120212097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 26.

Adding to 20000120212097 its reverse (79021202100002), we get a palindrome (99021322312099).

The spelling of 20000120212097 in words is "twenty trillion, one hundred twenty million, two hundred twelve thousand, ninety-seven".