220200010001001 has 256 divisors, whose sum is σ = 356206076928000. Its totient is φ = 134011723345920.

The previous prime is 220200010000991. The next prime is 220200010001011. The reversal of 220200010001001 is 100100010002022.

It is an interprime number because it is at equal distance from previous prime (220200010000991) and next prime (220200010001011).

It is not a de Polignac number, because 220200010001001 - 2⁹ = 220200010000489 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (220200010001011) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 231059821141 + ... + 231059822093.

It is an arithmetic number, because the mean of its divisors is an integer number (1391429988000).

Almost surely, 2^{220200010001001} is an apocalyptic number.

It is an amenable number.

220200010001001 is a deficient number, since it is larger than the sum of its proper divisors (136006066926999).

220200010001001 is a wasteful number, since it uses less digits than its factorization.

220200010001001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1821 (or 1815 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 220200010001001 its reverse (100100010002022), we get a palindrome (320300020003023).

The spelling of 220200010001001 in words is "two hundred twenty trillion, two hundred billion, ten million, one thousand, one".