100201220201 has 4 divisors (see below), whose sum is σ = 100210247892. Its totient is φ = 100192192512.

The previous prime is 100201220087. The next prime is 100201220221. The reversal of 100201220201 is 102022102001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102022102001 = 1511 ⋅67519591.

It can be written as a sum of positive squares in 2 ways, for example, as 5734124176 + 94467096025 = 75724^2 + 307355^2 .

It is a cyclic number.

It is not a de Polignac number, because 100201220201 - 2³⁰ = 99127478377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100201220221) 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, 4497176 + ... + 4519401.

It is an arithmetic number, because the mean of its divisors is an integer number (25052561973).

Almost surely, 2^100201220201 is an apocalyptic number.

It is an amenable number.

100201220201 is a deficient number, since it is larger than the sum of its proper divisors (9027691).

100201220201 is an equidigital number, since it uses as much as digits as its factorization.

100201220201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9027690.

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

Adding to 100201220201 its reverse (102022102001), we get a palindrome (202223322202).

The spelling of 100201220201 in words is "one hundred billion, two hundred one million, two hundred twenty thousand, two hundred one".