2101022021201 has 4 divisors (see below), whose sum is σ = 2211602127600. Its totient is φ = 1990441914804.

The previous prime is 2101022021173. The next prime is 2101022021221. The reversal of 2101022021201 is 1021202201012.

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 a de Polignac number, because none of the positive numbers 2^k-2101022021201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2101022021221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55290053171 + ... + 55290053208.

It is an arithmetic number, because the mean of its divisors is an integer number (552900531900).

Almost surely, 2^{2101022021201} is an apocalyptic number.

It is an amenable number.

2101022021201 is a deficient number, since it is larger than the sum of its proper divisors (110580106399).

2101022021201 is a wasteful number, since it uses less digits than its factorization.

2101022021201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110580106398.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 2101022021201 its reverse (1021202201012), we get a palindrome (3122224222213).

The spelling of 2101022021201 in words is "two trillion, one hundred one billion, twenty-two million, twenty-one thousand, two hundred one".