200120022021 has 16 divisors (see below), whose sum is σ = 267826268160. Its totient is φ = 132913762800.

The previous prime is 200120022019. The next prime is 200120022031. The reversal of 200120022021 is 120220021002.

It is not a de Polignac number, because 200120022021 - 2¹ = 200120022019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200120021988 and 200120022006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200120022031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4459546 + ... + 4504196.

It is an arithmetic number, because the mean of its divisors is an integer number (16739141760).

Almost surely, 2^200120022021 is an apocalyptic number.

It is an amenable number.

200120022021 is a deficient number, since it is larger than the sum of its proper divisors (67706246139).

200120022021 is a wasteful number, since it uses less digits than its factorization.

200120022021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50216.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 200120022021 its reverse (120220021002), we get a palindrome (320340043023).

The spelling of 200120022021 in words is "two hundred billion, one hundred twenty million, twenty-two thousand, twenty-one".