220122220021001 has 4 divisors (see below), whose sum is σ = 227222936795904. Its totient is φ = 213021503246100.

The previous prime is 220122220020971. The next prime is 220122220021007. The reversal of 220122220021001 is 100120022221022.

It is a happy number.

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 220122220021001 - 2³⁴ = 220105040151817 is a prime.

It is a super-3 number, since 3×220122220021001³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220122220021007) 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, 3550358387405 + ... + 3550358387466.

It is an arithmetic number, because the mean of its divisors is an integer number (56805734198976).

Almost surely, 2^{220122220021001} is an apocalyptic number.

It is an amenable number.

220122220021001 is a deficient number, since it is larger than the sum of its proper divisors (7100716774903).

220122220021001 is an equidigital number, since it uses as much as digits as its factorization.

220122220021001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7100716774902.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 220122220021001 its reverse (100120022221022), we get a palindrome (320242242242023).

The spelling of 220122220021001 in words is "two hundred twenty trillion, one hundred twenty-two billion, two hundred twenty million, twenty-one thousand, one".