220201210100123 has 16 divisors (see below), whose sum is σ = 252297287691456. Its totient is φ = 188265426733440.

The previous prime is 220201210100107. The next prime is 220201210100147. The reversal of 220201210100123 is 321001012102022.

It is not a de Polignac number, because 220201210100123 - 2⁴ = 220201210100107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220201210103123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20779088 + ... + 29532573.

It is an arithmetic number, because the mean of its divisors is an integer number (15768580480716).

Almost surely, 2^{220201210100123} is an apocalyptic number.

220201210100123 is a deficient number, since it is larger than the sum of its proper divisors (32096077591333).

220201210100123 is an equidigital number, since it uses as much as digits as its factorization.

220201210100123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50313254.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 220201210100123 its reverse (321001012102022), we get a palindrome (541202222202145).

The spelling of 220201210100123 in words is "two hundred twenty trillion, two hundred one billion, two hundred ten million, one hundred thousand, one hundred twenty-three".