122220102001 has 4 divisors (see below), whose sum is σ = 122224202100. Its totient is φ = 122216001904.

The previous prime is 122220101987. The next prime is 122220102007. The reversal of 122220102001 is 100201022221.

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 55048421376 + 67171680625 = 234624^2 + 259175^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122220102001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122220102007) 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, 2005006 + ... + 2065063.

It is an arithmetic number, because the mean of its divisors is an integer number (30556050525).

Almost surely, 2^122220102001 is an apocalyptic number.

It is an amenable number.

122220102001 is a deficient number, since it is larger than the sum of its proper divisors (4100099).

122220102001 is an equidigital number, since it uses as much as digits as its factorization.

122220102001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4100098.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 122220102001 its reverse (100201022221), we get a palindrome (222421124222).

The spelling of 122220102001 in words is "one hundred twenty-two billion, two hundred twenty million, one hundred two thousand, one".