20121120119 has 4 divisors (see below), whose sum is σ = 20156359080. Its totient is φ = 20085881160.

The previous prime is 20121120079. The next prime is 20121120127. The reversal of 20121120119 is 91102112102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20121120119 is a prime.

It is a super-2 number, since 2×20121120119² (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 20121120119.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20121125119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17618624 + ... + 17619765.

It is an arithmetic number, because the mean of its divisors is an integer number (5039089770).

Almost surely, 2^20121120119 is an apocalyptic number.

20121120119 is a deficient number, since it is larger than the sum of its proper divisors (35238961).

20121120119 is an equidigital number, since it uses as much as digits as its factorization.

20121120119 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35238960.

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

The spelling of 20121120119 in words is "twenty billion, one hundred twenty-one million, one hundred twenty thousand, one hundred nineteen".