101012202121111 has 2 divisors, whose sum is σ = 101012202121112. Its totient is φ = 101012202121110.

The previous prime is 101012202121099. The next prime is 101012202121133. The reversal of 101012202121111 is 111121202210101.

It is a weak prime.

It is an emirp because it is prime and its reverse (111121202210101) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101012202121111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101012202121511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50506101060555 + 50506101060556.

It is an arithmetic number, because the mean of its divisors is an integer number (50506101060556).

Almost surely, 2^{101012202121111} is an apocalyptic number.

101012202121111 is a deficient number, since it is larger than the sum of its proper divisors (1).

101012202121111 is an equidigital number, since it uses as much as digits as its factorization.

101012202121111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 101012202121111 its reverse (111121202210101), we get a palindrome (212133404331212).

The spelling of 101012202121111 in words is "one hundred one trillion, twelve billion, two hundred two million, one hundred twenty-one thousand, one hundred eleven".