20101202223 has 4 divisors (see below), whose sum is σ = 26801602968. Its totient is φ = 13400801480.

The previous prime is 20101202207. The next prime is 20101202227. The reversal of 20101202223 is 32220210102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20101202223 - 2⁴ = 20101202207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101202227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3350200368 + ... + 3350200373.

It is an arithmetic number, because the mean of its divisors is an integer number (6700400742).

Almost surely, 2^20101202223 is an apocalyptic number.

20101202223 is a deficient number, since it is larger than the sum of its proper divisors (6700400745).

20101202223 is an equidigital number, since it uses as much as digits as its factorization.

20101202223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6700400744.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 20101202223 its reverse (32220210102), we get a palindrome (52321412325).

The spelling of 20101202223 in words is "twenty billion, one hundred one million, two hundred two thousand, two hundred twenty-three".