202101112001 has 2 divisors, whose sum is σ = 202101112002. Its totient is φ = 202101112000.

The previous prime is 202101111997. The next prime is 202101112007. The reversal of 202101112001 is 100211101202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 177282260401 + 24818851600 = 421049^2 + 157540^2 .

It is a cyclic number.

It is not a de Polignac number, because 202101112001 - 2² = 202101111997 is a prime.

It is not a weakly prime, because it can be changed into another prime (202101112007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101050556000 + 101050556001.

It is an arithmetic number, because the mean of its divisors is an integer number (101050556001).

Almost surely, 2^202101112001 is an apocalyptic number.

It is an amenable number.

202101112001 is a deficient number, since it is larger than the sum of its proper divisors (1).

202101112001 is an equidigital number, since it uses as much as digits as its factorization.

202101112001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 202101112001 its reverse (100211101202), we get a palindrome (302312213203).

The spelling of 202101112001 in words is "two hundred two billion, one hundred one million, one hundred twelve thousand, one".