2102133244021 has 8 divisors (see below), whose sum is σ = 2115434763288. Its totient is φ = 2088869568000.

The previous prime is 2102133243937. The next prime is 2102133244039. The reversal of 2102133244021 is 1204423312012.

It can be written as a sum of positive squares in 4 ways, for example, as 911568567121 + 1190564676900 = 954761^2 + 1091130^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2102133244021 - 2¹⁵ = 2102133211253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102133244051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9349360 + ... + 9571561.

It is an arithmetic number, because the mean of its divisors is an integer number (264429345411).

Almost surely, 2^{2102133244021} is an apocalyptic number.

It is an amenable number.

2102133244021 is a deficient number, since it is larger than the sum of its proper divisors (13301519267).

2102133244021 is a wasteful number, since it uses less digits than its factorization.

2102133244021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18921623.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 2102133244021 its reverse (1204423312012), we get a palindrome (3306556556033).

The spelling of 2102133244021 in words is "two trillion, one hundred two billion, one hundred thirty-three million, two hundred forty-four thousand, twenty-one".