2120011021201 has 4 divisors (see below), whose sum is σ = 2120031216100. Its totient is φ = 2119990826304.

The previous prime is 2120011021157. The next prime is 2120011021223. The reversal of 2120011021201 is 1021201100212.

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 986476036225 + 1133534984976 = 993215^2 + 1064676^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120011021201 - 2²⁵ = 2119977466769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120011021901) 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, 9939156 + ... + 10150213.

It is an arithmetic number, because the mean of its divisors is an integer number (530007804025).

Almost surely, 2^{2120011021201} is an apocalyptic number.

It is an amenable number.

2120011021201 is a deficient number, since it is larger than the sum of its proper divisors (20194899).

2120011021201 is a wasteful number, since it uses less digits than its factorization.

2120011021201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20194898.

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

Adding to 2120011021201 its reverse (1021201100212), we get a palindrome (3141212121413).

The spelling of 2120011021201 in words is "two trillion, one hundred twenty billion, eleven million, twenty-one thousand, two hundred one".