220122121012221 has 8 divisors (see below), whose sum is σ = 293621212982944. Its totient is φ = 146685554858160.

The previous prime is 220122121012103. The next prime is 220122121012229. The reversal of 220122121012221 is 122210121221022.

220122121012221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 220122121012221 - 2¹³ = 220122121004029 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220122121012229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15631445950 + ... + 15631460031.

It is an arithmetic number, because the mean of its divisors is an integer number (36702651622868).

Almost surely, 2^{220122121012221} is an apocalyptic number.

It is an amenable number.

220122121012221 is a deficient number, since it is larger than the sum of its proper divisors (73499091970723).

220122121012221 is a wasteful number, since it uses less digits than its factorization.

220122121012221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31262908331.

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 220122121012221 its reverse (122210121221022), we get a palindrome (342332242233243).

The spelling of 220122121012221 in words is "two hundred twenty trillion, one hundred twenty-two billion, one hundred twenty-one million, twelve thousand, two hundred twenty-one".