220110121221001 has 16 divisors (see below), whose sum is σ = 244997534251008. Its totient is φ = 196076457792000.

The previous prime is 220110121220993. The next prime is 220110121221047. The reversal of 220110121221001 is 100122121011022.

It is a cyclic number.

It is not a de Polignac number, because 220110121221001 - 2³ = 220110121220993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220110121221901) 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, 1021123785 + ... + 1021339318.

It is an arithmetic number, because the mean of its divisors is an integer number (15312345890688).

Almost surely, 2^{220110121221001} is an apocalyptic number.

It is an amenable number.

220110121221001 is a deficient number, since it is larger than the sum of its proper divisors (24887413030007).

220110121221001 is a wasteful number, since it uses less digits than its factorization.

220110121221001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2042463312.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 220110121221001 its reverse (100122121011022), we get a palindrome (320232242232023).

The spelling of 220110121221001 in words is "two hundred twenty trillion, one hundred ten billion, one hundred twenty-one million, two hundred twenty-one thousand, one".