20011221119 has 8 divisors (see below), whose sum is σ = 20128733520. Its totient is φ = 19894044096.

The previous prime is 20011221107. The next prime is 20011221127. The reversal of 20011221119 is 91112211002.

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

It is a cyclic number.

It is not a de Polignac number, because 20011221119 - 2²⁰ = 20010172543 is a prime.

It is a super-2 number, since 2×20011221119² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20011221119.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011221149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36344 + ... + 203330.

It is an arithmetic number, because the mean of its divisors is an integer number (2516091690).

Almost surely, 2^20011221119 is an apocalyptic number.

20011221119 is a deficient number, since it is larger than the sum of its proper divisors (117512401).

20011221119 is a wasteful number, since it uses less digits than its factorization.

20011221119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167689.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 20011221119 in words is "twenty billion, eleven million, two hundred twenty-one thousand, one hundred nineteen".