10101220502111 has 2 divisors, whose sum is σ = 10101220502112. Its totient is φ = 10101220502110.

The previous prime is 10101220502077. The next prime is 10101220502147. The reversal of 10101220502111 is 11120502210101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10101220502111 - 2¹⁰ = 10101220501087 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10101220502111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10101220502311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5050610251055 + 5050610251056.

It is an arithmetic number, because the mean of its divisors is an integer number (5050610251056).

Almost surely, 2^{10101220502111} is an apocalyptic number.

10101220502111 is a deficient number, since it is larger than the sum of its proper divisors (1).

10101220502111 is an equidigital number, since it uses as much as digits as its factorization.

10101220502111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40, while the sum is 17.

Adding to 10101220502111 its reverse (11120502210101), we get a palindrome (21221722712212).

The spelling of 10101220502111 in words is "ten trillion, one hundred one billion, two hundred twenty million, five hundred two thousand, one hundred eleven".