1022020111999 has 2 divisors, whose sum is σ = 1022020112000. Its totient is φ = 1022020111998.

The previous prime is 1022020111949. The next prime is 1022020112017. The reversal of 1022020111999 is 9991110202201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1022020111999 - 2¹³ = 1022020103807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1022020111949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 511010055999 + 511010056000.

It is an arithmetic number, because the mean of its divisors is an integer number (511010056000).

Almost surely, 2^{1022020111999} is an apocalyptic number.

1022020111999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1022020111999 is an equidigital number, since it uses as much as digits as its factorization.

1022020111999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 37.

The spelling of 1022020111999 in words is "one trillion, twenty-two billion, twenty million, one hundred eleven thousand, nine hundred ninety-nine".