102201220201 has 4 divisors (see below), whose sum is σ = 103105655892. Its totient is φ = 101296784512.

The previous prime is 102201220183. The next prime is 102201220243. The reversal of 102201220201 is 102022102201.

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: 102022102201 = 109 ⋅935982589.

It can be written as a sum of positive squares in 2 ways, for example, as 2913840400 + 99287379801 = 53980^2 + 315099^2 .

It is a cyclic number.

It is not a de Polignac number, because 102201220201 - 2⁹ = 102201219689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102201260201) 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, 452217676 + ... + 452217901.

It is an arithmetic number, because the mean of its divisors is an integer number (25776413973).

Almost surely, 2^102201220201 is an apocalyptic number.

It is an amenable number.

102201220201 is a deficient number, since it is larger than the sum of its proper divisors (904435691).

102201220201 is an equidigital number, since it uses as much as digits as its factorization.

102201220201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904435690.

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

Adding to 102201220201 its reverse (102022102201), we get a palindrome (204223322402).

The spelling of 102201220201 in words is "one hundred two billion, two hundred one million, two hundred twenty thousand, two hundred one".