20110021021110 has 16 divisors (see below), whose sum is σ = 48264050450736. Its totient is φ = 5362672272288.

The previous prime is 20110021021099. The next prime is 20110021021163. The reversal of 20110021021110 is 1112012001102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 335167016989 + ... + 335167017048.

It is an arithmetic number, because the mean of its divisors is an integer number (3016503153171).

Almost surely, 2^{20110021021110} is an apocalyptic number.

20110021021110 is an abundant number, since it is smaller than the sum of its proper divisors (28154029429626).

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

20110021021110 is a wasteful number, since it uses less digits than its factorization.

20110021021110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670334034047.

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

Adding to 20110021021110 its reverse (1112012001102), we get a palindrome (21222033022212).

The spelling of 20110021021110 in words is "twenty trillion, one hundred ten billion, twenty-one million, twenty-one thousand, one hundred ten".