21020200211110 has 16 divisors (see below), whose sum is σ = 38003040385776. Its totient is φ = 8371040083168.

The previous prime is 21020200211093. The next prime is 21020200211111. The reversal of 21020200211110 is 1111200202012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21020200211111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4629997777 + ... + 4630002316.

It is an arithmetic number, because the mean of its divisors is an integer number (2375190024111).

Almost surely, 2^{21020200211110} is an apocalyptic number.

21020200211110 is a deficient number, since it is larger than the sum of its proper divisors (16982840174666).

21020200211110 is a wasteful number, since it uses less digits than its factorization.

21020200211110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9260000327.

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

Adding to 21020200211110 its reverse (1111200202012), we get a palindrome (22131400413122).

The spelling of 21020200211110 in words is "twenty-one trillion, twenty billion, two hundred million, two hundred eleven thousand, one hundred ten".