1222020100999 has 8 divisors (see below), whose sum is σ = 1286347466880. Its totient is φ = 1157693787000.

The previous prime is 1222020100969. The next prime is 1222020101011. The reversal of 1222020100999 is 9990010202221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1222020100999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222020100969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3509334 + ... + 3841804.

It is an arithmetic number, because the mean of its divisors is an integer number (160793433360).

Almost surely, 2^{1222020100999} is an apocalyptic number.

1222020100999 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

1222020100999 is a deficient number, since it is larger than the sum of its proper divisors (64327365881).

1222020100999 is a wasteful number, since it uses less digits than its factorization.

1222020100999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525941.

The product of its (nonzero) digits is 11664, while the sum is 37.

The spelling of 1222020100999 in words is "one trillion, two hundred twenty-two billion, twenty million, one hundred thousand, nine hundred ninety-nine".