20112122219 has 8 divisors (see below), whose sum is σ = 23016391680. Its totient is φ = 17215630056.

The previous prime is 20112122207. The next prime is 20112122249. The reversal of 20112122219 is 91222121102.

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 20112122219 - 2⁴ = 20112122203 is a prime.

It is a super-2 number, since 2×20112122219² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20112122194 and 20112122203.

It is not an unprimeable number, because it can be changed into a prime (20112122249) 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, 1938779 + ... + 1949124.

It is an arithmetic number, because the mean of its divisors is an integer number (2877048960).

Almost surely, 2^20112122219 is an apocalyptic number.

20112122219 is a deficient number, since it is larger than the sum of its proper divisors (2904269461).

20112122219 is an equidigital number, since it uses as much as digits as its factorization.

20112122219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3888649.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 20112122219 in words is "twenty billion, one hundred twelve million, one hundred twenty-two thousand, two hundred nineteen".