210202122112001 has 4 divisors (see below), whose sum is σ = 210202769592900. Its totient is φ = 210201474631104.

The previous prime is 210202122111967. The next prime is 210202122112033. The reversal of 210202122112001 is 100211221202012.

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 81728398221376 + 128473723890625 = 9040376^2 + 11334625^2 .

It is a cyclic number.

It is not a de Polignac number, because 210202122112001 - 2²⁶ = 210202055003137 is a prime.

It is a super-3 number, since 3×210202122112001³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210202122112061) 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, 323253236 + ... + 323902853.

It is an arithmetic number, because the mean of its divisors is an integer number (52550692398225).

Almost surely, 2^{210202122112001} is an apocalyptic number.

It is an amenable number.

210202122112001 is a deficient number, since it is larger than the sum of its proper divisors (647480899).

210202122112001 is an equidigital number, since it uses as much as digits as its factorization.

210202122112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 647480898.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 210202122112001 its reverse (100211221202012), we get a palindrome (310413343314013).

The spelling of 210202122112001 in words is "two hundred ten trillion, two hundred two billion, one hundred twenty-two million, one hundred twelve thousand, one".