200202101021 has 8 divisors (see below), whose sum is σ = 222557174784. Its totient is φ = 178840586160.

The previous prime is 200202100999. The next prime is 200202101023. The reversal of 200202101021 is 120101202002.

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 200202101021 - 2¹⁸ = 200201838877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200202100993 and 200202101011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200202101023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248389301 + ... + 248390106.

It is an arithmetic number, because the mean of its divisors is an integer number (27819646848).

Almost surely, 2^200202101021 is an apocalyptic number.

It is an amenable number.

200202101021 is a deficient number, since it is larger than the sum of its proper divisors (22355073763).

200202101021 is a wasteful number, since it uses less digits than its factorization.

200202101021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496779451.

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

Adding to 200202101021 its reverse (120101202002), we get a palindrome (320303303023).

The spelling of 200202101021 in words is "two hundred billion, two hundred two million, one hundred one thousand, twenty-one".