200120122212021 has 320 divisors, whose sum is σ = 357356482560000. Its totient is φ = 110256733699200.

The previous prime is 200120122211953. The next prime is 200120122212037. The reversal of 200120122212021 is 120212221021002.

It is a happy number.

200120122212021 is a `hidden beast` number, since 200 + 1 + 201 + 2 + 221 + 20 + 21 = 666.

It is not a de Polignac number, because 200120122212021 - 2⁹ = 200120122211509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200120122211985 and 200120122212003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200120122212421) by changing a digit.

It is a polite number, since it can be written in 319 ways as a sum of consecutive naturals, for example, 91840348710 + ... + 91840350888.

It is an arithmetic number, because the mean of its divisors is an integer number (1116739008000).

Almost surely, 2^{200120122212021} is an apocalyptic number.

It is an amenable number.

200120122212021 is a deficient number, since it is larger than the sum of its proper divisors (157236360347979).

200120122212021 is a wasteful number, since it uses less digits than its factorization.

200120122212021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3650 (or 3641 counting only the distinct ones).

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

Adding to 200120122212021 its reverse (120212221021002), we get a palindrome (320332343233023).

The spelling of 200120122212021 in words is "two hundred trillion, one hundred twenty billion, one hundred twenty-two million, two hundred twelve thousand, twenty-one".