220122101221001 has 16 divisors (see below), whose sum is σ = 266369781972096. Its totient is φ = 177575132196096.

The previous prime is 220122101220991. The next prime is 220122101221031. The reversal of 220122101221001 is 100122101221022.

It is a cyclic number.

It is not a de Polignac number, because 220122101221001 - 2¹⁴ = 220122101204617 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (220122101221031) 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, 3283331 + ... + 21237336.

It is an arithmetic number, because the mean of its divisors is an integer number (16648111373256).

Almost surely, 2^{220122101221001} is an apocalyptic number.

It is an amenable number.

220122101221001 is a deficient number, since it is larger than the sum of its proper divisors (46247680751095).

220122101221001 is a wasteful number, since it uses less digits than its factorization.

220122101221001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24596128.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 220122101221001 its reverse (100122101221022), we get a palindrome (320244202442023).

The spelling of 220122101221001 in words is "two hundred twenty trillion, one hundred twenty-two billion, one hundred one million, two hundred twenty-one thousand, one".