1020022011999 has 16 divisors (see below), whose sum is σ = 1512162758400. Its totient is φ = 679556108088.

The previous prime is 1020022011989. The next prime is 1020022012021. The reversal of 1020022011999 is 9991102200201.

It is not a de Polignac number, because 1020022011999 - 2⁹ = 1020022011487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020022011959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12697179 + ... + 12777260.

It is an arithmetic number, because the mean of its divisors is an integer number (94510172400).

Almost surely, 2^{1020022011999} is an apocalyptic number.

1020022011999 is a deficient number, since it is larger than the sum of its proper divisors (492140746401).

1020022011999 is a wasteful number, since it uses less digits than its factorization.

1020022011999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25475931 (or 25475925 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 36.

The spelling of 1020022011999 in words is "one trillion, twenty billion, twenty-two million, eleven thousand, nine hundred ninety-nine".