220122221101 has 8 divisors (see below), whose sum is σ = 226059060024. Its totient is φ = 214212430080.

The previous prime is 220122221051. The next prime is 220122221131. The reversal of 220122221101 is 101122221022.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 11556465001 + 208565756100 = 107501^2 + 456690^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 220122221101 - 2¹³ = 220122212909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220122221131) 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, 6745480 + ... + 6778033.

It is an arithmetic number, because the mean of its divisors is an integer number (28257382503).

Almost surely, 2^220122221101 is an apocalyptic number.

It is an amenable number.

220122221101 is a deficient number, since it is larger than the sum of its proper divisors (5936838923).

220122221101 is a wasteful number, since it uses less digits than its factorization.

220122221101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13523951.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 220122221101 its reverse (101122221022), we get a palindrome (321244442123).

The spelling of 220122221101 in words is "two hundred twenty billion, one hundred twenty-two million, two hundred twenty-one thousand, one hundred one".