1021002200111 has 2 divisors, whose sum is σ = 1021002200112. Its totient is φ = 1021002200110.

The previous prime is 1021002200083. The next prime is 1021002200117. The reversal of 1021002200111 is 1110022001201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1021002200111 - 2²⁶ = 1020935091247 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1021002200092 and 1021002200101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021002200117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510501100055 + 510501100056.

It is an arithmetic number, because the mean of its divisors is an integer number (510501100056).

Almost surely, 2^{1021002200111} is an apocalyptic number.

1021002200111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021002200111 is an equidigital number, since it uses as much as digits as its factorization.

1021002200111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1021002200111 its reverse (1110022001201), we get a palindrome (2131024201312).

The spelling of 1021002200111 in words is "one trillion, twenty-one billion, two million, two hundred thousand, one hundred eleven".