110621022522421 has 4 divisors (see below), whose sum is σ = 110622437969932. Its totient is φ = 110619607074912.

The previous prime is 110621022522407. The next prime is 110621022522467. The reversal of 110621022522421 is 124225220126011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11856900258225 + 98764122264196 = 3443385^2 + 9938014^2 .

It is a cyclic number.

It is not a de Polignac number, because 110621022522421 - 2⁷ = 110621022522293 is a prime.

It is a super-3 number, since 3×110621022522421³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110621022522821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 707606520 + ... + 707762833.

It is an arithmetic number, because the mean of its divisors is an integer number (27655609492483).

Almost surely, 2^{110621022522421} is an apocalyptic number.

It is an amenable number.

110621022522421 is a deficient number, since it is larger than the sum of its proper divisors (1415447511).

110621022522421 is an equidigital number, since it uses as much as digits as its factorization.

110621022522421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415447510.

The product of its (nonzero) digits is 7680, while the sum is 31.

Adding to 110621022522421 its reverse (124225220126011), we get a palindrome (234846242648432).

The spelling of 110621022522421 in words is "one hundred ten trillion, six hundred twenty-one billion, twenty-two million, five hundred twenty-two thousand, four hundred twenty-one".