20210021002011 has 8 divisors (see below), whose sum is σ = 27152394629184. Its totient is φ = 13370497354760.

The previous prime is 20210021001983. The next prime is 20210021002013. The reversal of 20210021002011 is 11020012001202.

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 20210021002011 - 2¹⁰ = 20210021000987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20210021002013) 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, 25712494521 + ... + 25712495306.

It is an arithmetic number, because the mean of its divisors is an integer number (3394049328648).

Almost surely, 2^{20210021002011} is an apocalyptic number.

20210021002011 is a deficient number, since it is larger than the sum of its proper divisors (6942373627173).

20210021002011 is a wasteful number, since it uses less digits than its factorization.

20210021002011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51424989961.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20210021002011 its reverse (11020012001202), we get a palindrome (31230033003213).

The spelling of 20210021002011 in words is "twenty trillion, two hundred ten billion, twenty-one million, two thousand, eleven".