1000200212021 has 4 divisors (see below), whose sum is σ = 1023460682112. Its totient is φ = 976939741932.

The previous prime is 1000200211973. The next prime is 1000200212023. The reversal of 1000200212021 is 1202120020001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1000200212021 - 2¹⁸ = 1000199949877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1000200211993 and 1000200212011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000200212023) 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 3 ways as a sum of consecutive naturals, for example, 11630234981 + ... + 11630235066.

It is an arithmetic number, because the mean of its divisors is an integer number (255865170528).

Almost surely, 2^{1000200212021} is an apocalyptic number.

It is an amenable number.

1000200212021 is a deficient number, since it is larger than the sum of its proper divisors (23260470091).

1000200212021 is an equidigital number, since it uses as much as digits as its factorization.

1000200212021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23260470090.

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

Adding to 1000200212021 its reverse (1202120020001), we get a palindrome (2202320232022).

The spelling of 1000200212021 in words is "one trillion, two hundred million, two hundred twelve thousand, twenty-one".