1011012120111 has 64 divisors (see below), whose sum is σ = 1654252056576. Its totient is φ = 536084774400.

The previous prime is 1011012120109. The next prime is 1011012120113. The reversal of 1011012120111 is 1110212101101.

It is an interprime number because it is at equal distance from previous prime (1011012120109) and next prime (1011012120113).

It is not a de Polignac number, because 1011012120111 - 2¹ = 1011012120109 is a prime.

It is a super-2 number, since 2×1011012120111² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011012120113) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14514076 + ... + 14583566.

It is an arithmetic number, because the mean of its divisors is an integer number (25847688384).

Almost surely, 2^{1011012120111} is an apocalyptic number.

1011012120111 is a deficient number, since it is larger than the sum of its proper divisors (643239936465).

1011012120111 is a wasteful number, since it uses less digits than its factorization.

1011012120111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70092.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 1011012120111 its reverse (1110212101101), we get a palindrome (2121224221212).

The spelling of 1011012120111 in words is "one trillion, eleven billion, twelve million, one hundred twenty thousand, one hundred eleven".