220212012222001 has 4 divisors (see below), whose sum is σ = 220214021180404. Its totient is φ = 220210003263600.

The previous prime is 220212012221989. The next prime is 220212012222011. The reversal of 220212012222001 is 100222210212022.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 57185719391376 + 163026292830625 = 7562124^2 + 12768175^2 .

It is a cyclic number.

It is not a de Polignac number, because 220212012222001 - 2¹⁷ = 220212012090929 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 220212012222001.

It is not an unprimeable number, because it can be changed into a prime (220212012222011) 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, 1004314770 + ... + 1004534011.

It is an arithmetic number, because the mean of its divisors is an integer number (55053505295101).

Almost surely, 2^{220212012222001} is an apocalyptic number.

It is an amenable number.

220212012222001 is a deficient number, since it is larger than the sum of its proper divisors (2008958403).

220212012222001 is a wasteful number, since it uses less digits than its factorization.

220212012222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2008958402.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 220212012222001 its reverse (100222210212022), we get a palindrome (320434222434023).

The spelling of 220212012222001 in words is "two hundred twenty trillion, two hundred twelve billion, twelve million, two hundred twenty-two thousand, one".