110621202121061 has 4 divisors (see below), whose sum is σ = 117128331657612. Its totient is φ = 104114072584512.

The previous prime is 110621202121057. The next prime is 110621202121123. The reversal of 110621202121061 is 160121202126011.

It is a happy number.

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 74485702860100 + 36135499260961 = 8630510^2 + 6011281^2 .

It is a cyclic number.

It is not a de Polignac number, because 110621202121061 - 2² = 110621202121057 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 110621202121061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110621202121021) 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, 3253564768250 + ... + 3253564768283.

It is an arithmetic number, because the mean of its divisors is an integer number (29282082914403).

Almost surely, 2^{110621202121061} is an apocalyptic number.

It is an amenable number.

110621202121061 is a deficient number, since it is larger than the sum of its proper divisors (6507129536551).

110621202121061 is an equidigital number, since it uses as much as digits as its factorization.

110621202121061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6507129536550.

The product of its (nonzero) digits is 576, while the sum is 26.

Adding to 110621202121061 its reverse (160121202126011), we get a palindrome (270742404247072).

The spelling of 110621202121061 in words is "one hundred ten trillion, six hundred twenty-one billion, two hundred two million, one hundred twenty-one thousand, sixty-one".