110202123112221 has 16 divisors (see below), whose sum is σ = 170052703539200. Its totient is φ = 62175519729648.

The previous prime is 110202123112217. The next prime is 110202123112223. The reversal of 110202123112221 is 122211321202011.

It is not a de Polignac number, because 110202123112221 - 2² = 110202123112217 is a prime.

It is a super-2 number, since 2×110202123112221² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110202123112223) 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, 33213417001 + ... + 33213420318.

It is an arithmetic number, because the mean of its divisors is an integer number (10628293971200).

Almost surely, 2^{110202123112221} is an apocalyptic number.

It is an amenable number.

110202123112221 is a deficient number, since it is larger than the sum of its proper divisors (59850580426979).

110202123112221 is an equidigital number, since it uses as much as digits as its factorization.

110202123112221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66426837408.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 110202123112221 its reverse (122211321202011), we get a palindrome (232413444314232).

The spelling of 110202123112221 in words is "one hundred ten trillion, two hundred two billion, one hundred twenty-three million, one hundred twelve thousand, two hundred twenty-one".