20122020120999 has 16 divisors (see below), whose sum is σ = 26851023602432. Its totient is φ = 13403851135488.

The previous prime is 20122020120959. The next prime is 20122020121033. The reversal of 20122020120999 is 99902102022102.

It is not a de Polignac number, because 20122020120999 - 2⁷ = 20122020120871 is a prime.

It is a super-2 number, since 2×20122020120999² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20122020120959) 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, 28990992 + ... + 29676954.

It is an arithmetic number, because the mean of its divisors is an integer number (1678188975152).

Almost surely, 2^{20122020120999} is an apocalyptic number.

20122020120999 is a deficient number, since it is larger than the sum of its proper divisors (6729003481433).

20122020120999 is a wasteful number, since it uses less digits than its factorization.

20122020120999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693846.

The product of its (nonzero) digits is 23328, while the sum is 39.

The spelling of 20122020120999 in words is "twenty trillion, one hundred twenty-two billion, twenty million, one hundred twenty thousand, nine hundred ninety-nine".