110101010221221 has 32 divisors (see below), whose sum is σ = 155506087376640. Its totient is φ = 69052164166656.

The previous prime is 110101010221211. The next prime is 110101010221333. The reversal of 110101010221221 is 122122010101011.

It is a happy number.

It is not a de Polignac number, because 110101010221221 - 2⁶ = 110101010221157 is a prime.

It is a super-2 number, since 2×110101010221221² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 110101010221221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110101010221211) 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, 1070668035 + ... + 1070770863.

It is an arithmetic number, because the mean of its divisors is an integer number (4859565230520).

Almost surely, 2^{110101010221221} is an apocalyptic number.

It is an amenable number.

110101010221221 is a deficient number, since it is larger than the sum of its proper divisors (45405077155419).

110101010221221 is a wasteful number, since it uses less digits than its factorization.

110101010221221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112013.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 110101010221221 its reverse (122122010101011), we get a palindrome (232223020322232).

The spelling of 110101010221221 in words is "one hundred ten trillion, one hundred one billion, ten million, two hundred twenty-one thousand, two hundred twenty-one".