1011021112111 has 16 divisors (see below), whose sum is σ = 1066135944384. Its totient is φ = 956841329664.

The previous prime is 1011021112069. The next prime is 1011021112147. The reversal of 1011021112111 is 1112111201101.

It is a cyclic number.

It is not a de Polignac number, because 1011021112111 - 2⁹ = 1011021111599 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011021112091 and 1011021112100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011021112411) 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, 8680981 + ... + 8796673.

It is an arithmetic number, because the mean of its divisors is an integer number (66633496524).

Almost surely, 2^{1011021112111} is an apocalyptic number.

1011021112111 is a deficient number, since it is larger than the sum of its proper divisors (55114832273).

1011021112111 is a wasteful number, since it uses less digits than its factorization.

1011021112111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119730.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 1011021112111 its reverse (1112111201101), we get a palindrome (2123132313212).

The spelling of 1011021112111 in words is "one trillion, eleven billion, twenty-one million, one hundred twelve thousand, one hundred eleven".