20110010011221 has 16 divisors (see below), whose sum is σ = 28876670081280. Its totient is φ = 12375065803200.

The previous prime is 20110010011181. The next prime is 20110010011261. The reversal of 20110010011221 is 12211001001102.

It is an interprime number because it is at equal distance from previous prime (20110010011181) and next prime (20110010011261).

It is not a de Polignac number, because 20110010011221 - 2¹⁰ = 20110010010197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20110010011197 and 20110010011206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110010011261) 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, 5261805 + ... + 8240546.

It is an arithmetic number, because the mean of its divisors is an integer number (1804791880080).

Almost surely, 2^{20110010011221} is an apocalyptic number.

It is an amenable number.

20110010011221 is a deficient number, since it is larger than the sum of its proper divisors (8766660070059).

20110010011221 is a wasteful number, since it uses less digits than its factorization.

20110010011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13540556.

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

Adding to 20110010011221 its reverse (12211001001102), we get a palindrome (32321011012323).

The spelling of 20110010011221 in words is "twenty trillion, one hundred ten billion, ten million, eleven thousand, two hundred twenty-one".