220122121101001 has 4 divisors (see below), whose sum is σ = 251568138401152. Its totient is φ = 188676103800852.

The previous prime is 220122121100977. The next prime is 220122121101007. The reversal of 220122121101001 is 100101121221022.

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 a cyclic number.

It is not a de Polignac number, because 220122121101001 - 2²¹ = 220122119003849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220122121101007) 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, 15723008650065 + ... + 15723008650078.

It is an arithmetic number, because the mean of its divisors is an integer number (62892034600288).

Almost surely, 2^{220122121101001} is an apocalyptic number.

It is an amenable number.

220122121101001 is a deficient number, since it is larger than the sum of its proper divisors (31446017300151).

220122121101001 is an equidigital number, since it uses as much as digits as its factorization.

220122121101001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31446017300150.

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

Adding to 220122121101001 its reverse (100101121221022), we get a palindrome (320223242322023).

The spelling of 220122121101001 in words is "two hundred twenty trillion, one hundred twenty-two billion, one hundred twenty-one million, one hundred one thousand, one".