20020210011111 has 32 divisors (see below), whose sum is σ = 27190854759168. Its totient is φ = 13099979370240.

The previous prime is 20020210011091. The next prime is 20020210011133. The reversal of 20020210011111 is 11111001202002.

It is not a de Polignac number, because 20020210011111 - 2¹⁴ = 20020209994727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020210011161) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 465164485 + ... + 465207521.

It is an arithmetic number, because the mean of its divisors is an integer number (849714211224).

Almost surely, 2^{20020210011111} is an apocalyptic number.

20020210011111 is a deficient number, since it is larger than the sum of its proper divisors (7170644748057).

20020210011111 is a wasteful number, since it uses less digits than its factorization.

20020210011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53391.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 20020210011111 its reverse (11111001202002), we get a palindrome (31131211213113).

The spelling of 20020210011111 in words is "twenty trillion, twenty billion, two hundred ten million, eleven thousand, one hundred eleven".