120020122021121 has 24 divisors (see below), whose sum is σ = 152596547536896. Its totient is φ = 93699634412160.

The previous prime is 120020122021057. The next prime is 120020122021171. The reversal of 120020122021121 is 121120221020021.

It is not a de Polignac number, because 120020122021121 - 2⁶ = 120020122021057 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 120020122021121.

It is not an unprimeable number, because it can be changed into a prime (120020122021171) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2323873841 + ... + 2323925486.

It is an arithmetic number, because the mean of its divisors is an integer number (6358189480704).

Almost surely, 2^{120020122021121} is an apocalyptic number.

It is an amenable number.

120020122021121 is a deficient number, since it is larger than the sum of its proper divisors (32576425515775).

120020122021121 is a wasteful number, since it uses less digits than its factorization.

120020122021121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4647799389 (or 4647799382 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 120020122021121 its reverse (121120221020021), we get a palindrome (241140343041142).

The spelling of 120020122021121 in words is "one hundred twenty trillion, twenty billion, one hundred twenty-two million, twenty-one thousand, one hundred twenty-one".