120221220020121 has 96 divisors (see below), whose sum is σ = 199697004823680. Its totient is φ = 71659488499200.

The previous prime is 120221220020117. The next prime is 120221220020137. The reversal of 120221220020121 is 121020022122021.

It is a happy number.

120221220020121 is a `hidden beast` number, since 1 + 2 + 0 + 221 + 220 + 0 + 201 + 21 = 666.

It is not a de Polignac number, because 120221220020121 - 2² = 120221220020117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120221220020094 and 120221220020103.

It is not an unprimeable number, because it can be changed into a prime (120221220020621) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1853717131 + ... + 1853781983.

It is an arithmetic number, because the mean of its divisors is an integer number (2080177133580).

Almost surely, 2^{120221220020121} is an apocalyptic number.

120221220020121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120221220020121 is a deficient number, since it is larger than the sum of its proper divisors (79475784803559).

120221220020121 is a wasteful number, since it uses less digits than its factorization.

120221220020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76309 (or 76297 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 120221220020121 its reverse (121020022122021), we get a palindrome (241241242142142).

The spelling of 120221220020121 in words is "one hundred twenty trillion, two hundred twenty-one billion, two hundred twenty million, twenty thousand, one hundred twenty-one".