21020100211110 has 192 divisors, whose sum is σ = 68106870489600. Its totient is φ = 4031827338240.

The previous prime is 21020100211091. The next prime is 21020100211183. The reversal of 21020100211110 is 1111200102012.

It is a super-2 number, since 2×21020100211110² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 26531535 + ... + 27312314.

It is an arithmetic number, because the mean of its divisors is an integer number (354723283800).

Almost surely, 2^{21020100211110} is an apocalyptic number.

21020100211110 is an abundant number, since it is smaller than the sum of its proper divisors (47086770278490).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21020100211110 is a wasteful number, since it uses less digits than its factorization.

21020100211110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53843903 (or 53843890 counting only the distinct ones).

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

Adding to 21020100211110 its reverse (1111200102012), we get a palindrome (22131300313122).

The spelling of 21020100211110 in words is "twenty-one trillion, twenty billion, one hundred million, two hundred eleven thousand, one hundred ten".