20210020012111 has 16 divisors (see below), whose sum is σ = 20793439228000. Its totient is φ = 19634909234688.

The previous prime is 20210020012073. The next prime is 20210020012121. The reversal of 20210020012111 is 11121002001202.

It is a cyclic number.

It is not a de Polignac number, because 20210020012111 - 2¹³ = 20210020003919 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20210020012091 and 20210020012100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210020012121) 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, 161580145 + ... + 161705173.

It is an arithmetic number, because the mean of its divisors is an integer number (1299589951750).

Almost surely, 2^{20210020012111} is an apocalyptic number.

20210020012111 is a deficient number, since it is larger than the sum of its proper divisors (583419215889).

20210020012111 is a wasteful number, since it uses less digits than its factorization.

20210020012111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158218.

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

Adding to 20210020012111 its reverse (11121002001202), we get a palindrome (31331022013313).

The spelling of 20210020012111 in words is "twenty trillion, two hundred ten billion, twenty million, twelve thousand, one hundred eleven".