20122111231199 has 2 divisors, whose sum is σ = 20122111231200. Its totient is φ = 20122111231198.

The previous prime is 20122111231141. The next prime is 20122111231223. The reversal of 20122111231199 is 99113211122102.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20122111231199 - 2⁸ = 20122111230943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20122111231499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061055615599 + 10061055615600.

It is an arithmetic number, because the mean of its divisors is an integer number (10061055615600).

Almost surely, 2^{20122111231199} is an apocalyptic number.

20122111231199 is a deficient number, since it is larger than the sum of its proper divisors (1).

20122111231199 is an equidigital number, since it uses as much as digits as its factorization.

20122111231199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 35.

The spelling of 20122111231199 in words is "twenty trillion, one hundred twenty-two billion, one hundred eleven million, two hundred thirty-one thousand, one hundred ninety-nine".