201102121020001 has 4 divisors (see below), whose sum is σ = 201102183463104. Its totient is φ = 201102058576900.

The previous prime is 201102121019977. The next prime is 201102121020019. The reversal of 201102121020001 is 100020121201102.

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 201102121020001 - 2¹⁹ = 201102120495713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201102121020401) 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, 26111965 + ... + 32924746.

It is an arithmetic number, because the mean of its divisors is an integer number (50275545865776).

Almost surely, 2^{201102121020001} is an apocalyptic number.

It is an amenable number.

201102121020001 is a deficient number, since it is larger than the sum of its proper divisors (62443103).

201102121020001 is an equidigital number, since it uses as much as digits as its factorization.

201102121020001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62443102.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 201102121020001 its reverse (100020121201102), we get a palindrome (301122242221103).

The spelling of 201102121020001 in words is "two hundred one trillion, one hundred two billion, one hundred twenty-one million, twenty thousand, one".