200120102021 has 8 divisors (see below), whose sum is σ = 228783429504. Its totient is φ = 171475459920.

The previous prime is 200120102009. The next prime is 200120102029. The reversal of 200120102021 is 120201021002.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 200120102021 - 2¹⁴ = 200120085637 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 200120101993 and 200120102011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200120102029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4648385 + ... + 4691238.

It is an arithmetic number, because the mean of its divisors is an integer number (28597928688).

Almost surely, 2^200120102021 is an apocalyptic number.

It is an amenable number.

200120102021 is a deficient number, since it is larger than the sum of its proper divisors (28663327483).

200120102021 is an equidigital number, since it uses as much as digits as its factorization.

200120102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9342691.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 200120102021 its reverse (120201021002), we get a palindrome (320321123023).

The spelling of 200120102021 in words is "two hundred billion, one hundred twenty million, one hundred two thousand, twenty-one".