122201020001 has 4 divisors (see below), whose sum is σ = 122725488132. Its totient is φ = 121676551872.

The previous prime is 122201019979. The next prime is 122201020013. The reversal of 122201020001 is 100020102221.

It is a happy number.

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 86271438400 + 35929581601 = 293720^2 + 189551^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122201020001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122201020801) 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, 262233716 + ... + 262234181.

It is an arithmetic number, because the mean of its divisors is an integer number (30681372033).

Almost surely, 2^122201020001 is an apocalyptic number.

It is an amenable number.

122201020001 is a deficient number, since it is larger than the sum of its proper divisors (524468131).

122201020001 is an equidigital number, since it uses as much as digits as its factorization.

122201020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524468130.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 122201020001 its reverse (100020102221), we get a palindrome (222221122222).

The spelling of 122201020001 in words is "one hundred twenty-two billion, two hundred one million, twenty thousand, one".