120020102221221 has 12 divisors (see below), whose sum is σ = 183560156338572. Its totient is φ = 75306730805376.

The previous prime is 120020102221207. The next prime is 120020102221223. The reversal of 120020102221221 is 122122201020021.

It is a happy number.

120020102221221 is a `hidden beast` number, since 1 + 20 + 0 + 201 + 0 + 2 + 221 + 221 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 107335919693025 + 12684182528196 = 10360305^2 + 3561486^2 .

It is not a de Polignac number, because 120020102221221 - 2⁵ = 120020102221189 is a prime.

It is a super-3 number, since 3×120020102221221³ (a number of 43 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120020102221194 and 120020102221203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120020102221223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 392222556126 + ... + 392222556431.

It is an arithmetic number, because the mean of its divisors is an integer number (15296679694881).

Almost surely, 2^{120020102221221} is an apocalyptic number.

It is an amenable number.

120020102221221 is a deficient number, since it is larger than the sum of its proper divisors (63540054117351).

120020102221221 is a wasteful number, since it uses less digits than its factorization.

120020102221221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 784445112580 (or 784445112577 counting only the distinct ones).

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

Adding to 120020102221221 its reverse (122122201020021), we get a palindrome (242142303241242).

The spelling of 120020102221221 in words is "one hundred twenty trillion, twenty billion, one hundred two million, two hundred twenty-one thousand, two hundred twenty-one".