2043221102101 has 2 divisors, whose sum is σ = 2043221102102. Its totient is φ = 2043221102100.

The previous prime is 2043221102077. The next prime is 2043221102257. The reversal of 2043221102101 is 1012011223402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1919197393201 + 124023708900 = 1385351^2 + 352170^2 .

It is a cyclic number.

It is not a de Polignac number, because 2043221102101 - 2²¹ = 2043219004949 is a prime.

It is a super-2 number, since 2×2043221102101² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2043221102401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021610551050 + 1021610551051.

It is an arithmetic number, because the mean of its divisors is an integer number (1021610551051).

Almost surely, 2^{2043221102101} is an apocalyptic number.

It is an amenable number.

2043221102101 is a deficient number, since it is larger than the sum of its proper divisors (1).

2043221102101 is an equidigital number, since it uses as much as digits as its factorization.

2043221102101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 2043221102101 its reverse (1012011223402), we get a palindrome (3055232325503).

The spelling of 2043221102101 in words is "two trillion, forty-three billion, two hundred twenty-one million, one hundred two thousand, one hundred one".