20210010221011 has 16 divisors (see below), whose sum is σ = 22480520516608. Its totient is φ = 18042510304800.

The previous prime is 20210010220937. The next prime is 20210010221047. The reversal of 20210010221011 is 11012201001202.

It is a cyclic number.

It is not a de Polignac number, because 20210010221011 - 2²¹ = 20210008123859 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20210010220982 and 20210010221000.

It is not an unprimeable number, because it can be changed into a prime (20210010221711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14755785 + ... + 16067146.

It is an arithmetic number, because the mean of its divisors is an integer number (1405032532288).

Almost surely, 2^{20210010221011} is an apocalyptic number.

20210010221011 is a deficient number, since it is larger than the sum of its proper divisors (2270510295597).

20210010221011 is a wasteful number, since it uses less digits than its factorization.

20210010221011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30824602.

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

Adding to 20210010221011 its reverse (11012201001202), we get a palindrome (31222211222213).

The spelling of 20210010221011 in words is "twenty trillion, two hundred ten billion, ten million, two hundred twenty-one thousand, eleven".