210011020021021 has 8 divisors (see below), whose sum is σ = 210451657138688. Its totient is φ = 209570724090000.

The previous prime is 210011020020979. The next prime is 210011020021039. The reversal of 210011020021021 is 120120020110012.

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 210011020021021 - 2¹¹ = 210011020018973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210011020020992 and 210011020021010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210011020081021) 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, 84064290 + ... + 86526451.

It is an arithmetic number, because the mean of its divisors is an integer number (26306457142336).

Almost surely, 2^{210011020021021} is an apocalyptic number.

It is an amenable number.

210011020021021 is a deficient number, since it is larger than the sum of its proper divisors (440637117667).

210011020021021 is a wasteful number, since it uses less digits than its factorization.

210011020021021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170593323.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 210011020021021 its reverse (120120020110012), we get a palindrome (330131040131033).

The spelling of 210011020021021 in words is "two hundred ten trillion, eleven billion, twenty million, twenty-one thousand, twenty-one".