121122120113 has 16 divisors (see below), whose sum is σ = 132923609280. Its totient is φ = 109963998144.

The previous prime is 121122120103. The next prime is 121122120137. The reversal of 121122120113 is 311021221121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 121122120113 - 2⁸ = 121122119857 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121122120091 and 121122120100.

It is not an unprimeable number, because it can be changed into a prime (121122120103) 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, 1355306 + ... + 1441907.

It is an arithmetic number, because the mean of its divisors is an integer number (8307725580).

Almost surely, 2^121122120113 is an apocalyptic number.

It is an amenable number.

121122120113 is a deficient number, since it is larger than the sum of its proper divisors (11801489167).

121122120113 is a wasteful number, since it uses less digits than its factorization.

121122120113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2797328.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 121122120113 its reverse (311021221121), we get a palindrome (432143341234).

The spelling of 121122120113 in words is "one hundred twenty-one billion, one hundred twenty-two million, one hundred twenty thousand, one hundred thirteen".