120200122021221 has 48 divisors (see below), whose sum is σ = 200549686147200. Its totient is φ = 68562703656960.

The previous prime is 120200122021219. The next prime is 120200122021267. The reversal of 120200122021221 is 122120221002021.

It is a happy number.

120200122021221 is a `hidden beast` number, since 1 + 2 + 0 + 200 + 1 + 220 + 21 + 221 = 666.

It is not a de Polignac number, because 120200122021221 - 2¹ = 120200122021219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 120200122021194 and 120200122021203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120200122021201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 222075880 + ... + 222616478.

It is an arithmetic number, because the mean of its divisors is an integer number (4178118461400).

Almost surely, 2^{120200122021221} is an apocalyptic number.

120200122021221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120200122021221 is a deficient number, since it is larger than the sum of its proper divisors (80349564125979).

120200122021221 is a wasteful number, since it uses less digits than its factorization.

120200122021221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672746 (or 672743 counting only the distinct ones).

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

Adding to 120200122021221 its reverse (122120221002021), we get a palindrome (242320343023242).

The spelling of 120200122021221 in words is "one hundred twenty trillion, two hundred billion, one hundred twenty-two million, twenty-one thousand, two hundred twenty-one".