2201020121012 has 6 divisors (see below), whose sum is σ = 3851785211778. Its totient is φ = 1100510060504.

The previous prime is 2201020120993. The next prime is 2201020121021. The reversal of 2201020121012 is 2101210201022.

It can be written as a sum of positive squares in only one way, i.e., 2194587439396 + 6432681616 = 1481414^2 + 80204^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275127515123 + ... + 275127515130.

It is an arithmetic number, because the mean of its divisors is an integer number (641964201963).

Almost surely, 2^{2201020121012} is an apocalyptic number.

It is an amenable number.

2201020121012 is a deficient number, since it is larger than the sum of its proper divisors (1650765090766).

2201020121012 is a wasteful number, since it uses less digits than its factorization.

2201020121012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550255030257 (or 550255030255 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2201020121012 its reverse (2101210201022), we get a palindrome (4302230322034).

The spelling of 2201020121012 in words is "two trillion, two hundred one billion, twenty million, one hundred twenty-one thousand, twelve".