2100341402221 has 2 divisors, whose sum is σ = 2100341402222. Its totient is φ = 2100341402220.

The previous prime is 2100341402183. The next prime is 2100341402261. The reversal of 2100341402221 is 1222041430012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1647849746596 + 452491655625 = 1283686^2 + 672675^2 .

It is a cyclic number.

It is not a de Polignac number, because 2100341402221 - 2¹⁹ = 2100340877933 is a prime.

It is a super-2 number, since 2×2100341402221² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2100341402192 and 2100341402201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2100341402261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050170701110 + 1050170701111.

It is an arithmetic number, because the mean of its divisors is an integer number (1050170701111).

Almost surely, 2^{2100341402221} is an apocalyptic number.

It is an amenable number.

2100341402221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100341402221 is an equidigital number, since it uses as much as digits as its factorization.

2100341402221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 2100341402221 its reverse (1222041430012), we get a palindrome (3322382832233).

The spelling of 2100341402221 in words is "two trillion, one hundred billion, three hundred forty-one million, four hundred two thousand, two hundred twenty-one".