20001210110122 has 8 divisors (see below), whose sum is σ = 30004131409956. Its totient is φ = 9999832973472.

The previous prime is 20001210110081. The next prime is 20001210110129. The reversal of 20001210110122 is 22101101210002.

It can be written as a sum of positive squares in 2 ways, for example, as 18747349892041 + 1253860218081 = 4329821^2 + 1119759^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20001210110129) 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, 386008413 + ... + 386060224.

Almost surely, 2^{20001210110122} is an apocalyptic number.

20001210110122 is a deficient number, since it is larger than the sum of its proper divisors (10002921299834).

20001210110122 is a wasteful number, since it uses less digits than its factorization.

20001210110122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772081592.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20001210110122 its reverse (22101101210002), we get a palindrome (42102311320124).

The spelling of 20001210110122 in words is "twenty trillion, one billion, two hundred ten million, one hundred ten thousand, one hundred twenty-two".