1012022020111 has 2 divisors, whose sum is σ = 1012022020112. Its totient is φ = 1012022020110.

The previous prime is 1012022020109. The next prime is 1012022020133. The reversal of 1012022020111 is 1110202202101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1012022020111 - 2¹ = 1012022020109 is a prime.

Together with 1012022020109, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1012022020091 and 1012022020100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012022020171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506011010055 + 506011010056.

It is an arithmetic number, because the mean of its divisors is an integer number (506011010056).

Almost surely, 2^{1012022020111} is an apocalyptic number.

1012022020111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012022020111 is an equidigital number, since it uses as much as digits as its factorization.

1012022020111 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 13.

Adding to 1012022020111 its reverse (1110202202101), we get a palindrome (2122224222212).

The spelling of 1012022020111 in words is "one trillion, twelve billion, twenty-two million, twenty thousand, one hundred eleven".