220122112212001 has 8 divisors (see below), whose sum is σ = 221729795322984. Its totient is φ = 218514442903680.

The previous prime is 220122112211987. The next prime is 220122112212103. The reversal of 220122112212001 is 100212211221022.

It can be written as a sum of positive squares in 4 ways, for example, as 16038030572001 + 204084081640000 = 4004751^2 + 14285800^2 .

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 220122112212001 - 2²⁹ = 220121575341089 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220122112212001.

It is not an unprimeable number, because it can be changed into a prime (220122112212701) 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, 29721691 + ... + 36381631.

It is an arithmetic number, because the mean of its divisors is an integer number (27716224415373).

Almost surely, 2^{220122112212001} is an apocalyptic number.

It is an amenable number.

220122112212001 is a deficient number, since it is larger than the sum of its proper divisors (1607683110983).

220122112212001 is a wasteful number, since it uses less digits than its factorization.

220122112212001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6901331.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 220122112212001 its reverse (100212211221022), we get a palindrome (320334323433023).

The spelling of 220122112212001 in words is "two hundred twenty trillion, one hundred twenty-two billion, one hundred twelve million, two hundred twelve thousand, one".