110022212221221 has 4 divisors (see below), whose sum is σ = 146696282961632. Its totient is φ = 73348141480812.

The previous prime is 110022212221169. The next prime is 110022212221277. The reversal of 110022212221221 is 122122212220011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 110022212221221 - 2²⁶ = 110022145112357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110022212221421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18337035370201 + ... + 18337035370206.

It is an arithmetic number, because the mean of its divisors is an integer number (36674070740408).

Almost surely, 2^{110022212221221} is an apocalyptic number.

It is an amenable number.

110022212221221 is a deficient number, since it is larger than the sum of its proper divisors (36674070740411).

110022212221221 is an equidigital number, since it uses as much as digits as its factorization.

110022212221221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36674070740410.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 110022212221221 its reverse (122122212220011), we get a palindrome (232144424441232).

The spelling of 110022212221221 in words is "one hundred ten trillion, twenty-two billion, two hundred twelve million, two hundred twenty-one thousand, two hundred twenty-one".