1000202022021 has 4 divisors (see below), whose sum is σ = 1333602696032. Its totient is φ = 666801348012.

The previous prime is 1000202022011. The next prime is 1000202022041. The reversal of 1000202022021 is 1202202020001.

1000202022021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 not a de Polignac number, because 1000202022021 - 2⁷ = 1000202021893 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1000202021988 and 1000202022006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000202022011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166700337001 + ... + 166700337006.

It is an arithmetic number, because the mean of its divisors is an integer number (333400674008).

Almost surely, 2^{1000202022021} is an apocalyptic number.

It is an amenable number.

1000202022021 is a deficient number, since it is larger than the sum of its proper divisors (333400674011).

1000202022021 is an equidigital number, since it uses as much as digits as its factorization.

1000202022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333400674010.

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

Adding to 1000202022021 its reverse (1202202020001), we get a palindrome (2202404042022).

The spelling of 1000202022021 in words is "one trillion, two hundred two million, twenty-two thousand, twenty-one".