1012210120111 has 16 divisors (see below), whose sum is σ = 1073193721344. Its totient is φ = 952673683104.

The previous prime is 1012210120099. The next prime is 1012210120121. The reversal of 1012210120111 is 1110210122101.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1012210120111 - 2⁵ = 1012210120079 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012210120091 and 1012210120100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012210120121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 996601 + ... + 1737133.

It is an arithmetic number, because the mean of its divisors is an integer number (67074607584).

Almost surely, 2^{1012210120111} is an apocalyptic number.

1012210120111 is a deficient number, since it is larger than the sum of its proper divisors (60983601233).

1012210120111 is an equidigital number, since it uses as much as digits as its factorization.

1012210120111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741510.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 1012210120111 its reverse (1110210122101), we get a palindrome (2122420242212).

The spelling of 1012210120111 in words is "one trillion, twelve billion, two hundred ten million, one hundred twenty thousand, one hundred eleven".