1000020122021 has 8 divisors (see below), whose sum is σ = 1029240811584. Its totient is φ = 971219874240.

The previous prime is 1000020122011. The next prime is 1000020122051. The reversal of 1000020122021 is 1202210200001.

It is a happy number.

1000020122021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1000020122021 - 2³⁴ = 982840252837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1000020121993 and 1000020122011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000020122011) 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, 105105620 + ... + 105115133.

It is an arithmetic number, because the mean of its divisors is an integer number (128655101448).

Almost surely, 2^{1000020122021} is an apocalyptic number.

It is an amenable number.

1000020122021 is a deficient number, since it is larger than the sum of its proper divisors (29220689563).

1000020122021 is an equidigital number, since it uses as much as digits as its factorization.

1000020122021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210220891.

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

Adding to 1000020122021 its reverse (1202210200001), we get a palindrome (2202230322022).

The spelling of 1000020122021 in words is "one trillion, twenty million, one hundred twenty-two thousand, twenty-one".