1012202020111 has 2 divisors, whose sum is σ = 1012202020112. Its totient is φ = 1012202020110.

The previous prime is 1012202020103. The next prime is 1012202020129. The reversal of 1012202020111 is 1110202022101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1012202020111 - 2³ = 1012202020103 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1012202020091 and 1012202020100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012202020171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506101010055 + 506101010056.

It is an arithmetic number, because the mean of its divisors is an integer number (506101010056).

Almost surely, 2^{1012202020111} is an apocalyptic number.

1012202020111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012202020111 is an equidigital number, since it uses as much as digits as its factorization.

1012202020111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1012202020111 its reverse (1110202022101), we get a palindrome (2122404042212).

The spelling of 1012202020111 in words is "one trillion, twelve billion, two hundred two million, twenty thousand, one hundred eleven".