210122121200001 has 4 divisors (see below), whose sum is σ = 280162828266672. Its totient is φ = 140081414133332.

The previous prime is 210122121199987. The next prime is 210122121200039. The reversal of 210122121200001 is 100002121221012.

210122121200001 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 210122121200001 - 2⁷ = 210122121199873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (210122121200071) 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, 35020353533331 + ... + 35020353533336.

It is an arithmetic number, because the mean of its divisors is an integer number (70040707066668).

Almost surely, 2^{210122121200001} is an apocalyptic number.

It is an amenable number.

210122121200001 is a deficient number, since it is larger than the sum of its proper divisors (70040707066671).

210122121200001 is an equidigital number, since it uses as much as digits as its factorization.

210122121200001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70040707066670.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 210122121200001 its reverse (100002121221012), we get a palindrome (310124242421013).

The spelling of 210122121200001 in words is "two hundred ten trillion, one hundred twenty-two billion, one hundred twenty-one million, two hundred thousand, one".