101002200121 has 2 divisors, whose sum is σ = 101002200122. Its totient is φ = 101002200120.

The previous prime is 101002200077. The next prime is 101002200127. The reversal of 101002200121 is 121002200101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51103575721 + 49898624400 = 226061^2 + 223380^2 .

It is a cyclic number.

It is not a de Polignac number, because 101002200121 - 2²⁵ = 100968645689 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101002200098 and 101002200107.

It is not a weakly prime, because it can be changed into another prime (101002200127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50501100060 + 50501100061.

It is an arithmetic number, because the mean of its divisors is an integer number (50501100061).

Almost surely, 2^101002200121 is an apocalyptic number.

It is an amenable number.

101002200121 is a deficient number, since it is larger than the sum of its proper divisors (1).

101002200121 is an equidigital number, since it uses as much as digits as its factorization.

101002200121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 101002200121 its reverse (121002200101), we get a palindrome (222004400222).

The spelling of 101002200121 in words is "one hundred one billion, two million, two hundred thousand, one hundred twenty-one".