220122011222001 has 96 divisors (see below), whose sum is σ = 378129896352000. Its totient is φ = 120729896146944.

The previous prime is 220122011221999. The next prime is 220122011222023. The reversal of 220122011222001 is 100222110221022.

It is a happy number.

220122011222001 is a `hidden beast` number, since 220 + 1 + 220 + 1 + 1 + 2 + 220 + 0 + 1 = 666.

220122011222001 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 220122011222001 - 2¹ = 220122011221999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220122011222401) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 263085045 + ... + 263920413.

It is an arithmetic number, because the mean of its divisors is an integer number (3938853087000).

Almost surely, 2^{220122011222001} is an apocalyptic number.

220122011222001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

220122011222001 is a deficient number, since it is larger than the sum of its proper divisors (158007885129999).

220122011222001 is a wasteful number, since it uses less digits than its factorization.

220122011222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 836263 (or 836260 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 220122011222001 its reverse (100222110221022), we get a palindrome (320344121443023).

The spelling of 220122011222001 in words is "two hundred twenty trillion, one hundred twenty-two billion, eleven million, two hundred twenty-two thousand, one".