202122122012101 has 4 divisors (see below), whose sum is σ = 202616308129900. Its totient is φ = 201627935894304.

The previous prime is 202122122012087. The next prime is 202122122012117. The reversal of 202122122012101 is 101210221221202.

202122122012101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 77970136204900 + 124151985807201 = 8830070^2 + 11142351^2 .

It is a cyclic number.

It is not a de Polignac number, because 202122122012101 - 2⁷ = 202122122011973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202122122012191) 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, 247093058286 + ... + 247093059103.

It is an arithmetic number, because the mean of its divisors is an integer number (50654077032475).

Almost surely, 2^{202122122012101} is an apocalyptic number.

It is an amenable number.

202122122012101 is a deficient number, since it is larger than the sum of its proper divisors (494186117799).

202122122012101 is an equidigital number, since it uses as much as digits as its factorization.

202122122012101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 494186117798.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 202122122012101 its reverse (101210221221202), we get a palindrome (303332343233303).

The spelling of 202122122012101 in words is "two hundred two trillion, one hundred twenty-two billion, one hundred twenty-two million, twelve thousand, one hundred one".