1111002120111 has 16 divisors (see below), whose sum is σ = 1597252200320. Its totient is φ = 682850567520.

The previous prime is 1111002120089. The next prime is 1111002120119. The reversal of 1111002120111 is 1110212001111.

It is not a de Polignac number, because 1111002120111 - 2²³ = 1110993731503 is a prime.

It is a super-2 number, since 2×1111002120111² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111002120119) 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, 17531401 + ... + 17594658.

It is an arithmetic number, because the mean of its divisors is an integer number (99828262520).

Almost surely, 2^{1111002120111} is an apocalyptic number.

1111002120111 is a deficient number, since it is larger than the sum of its proper divisors (486250080209).

1111002120111 is a wasteful number, since it uses less digits than its factorization.

1111002120111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35126886.

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

Adding to 1111002120111 its reverse (1110212001111), we get a palindrome (2221214121222).

The spelling of 1111002120111 in words is "one trillion, one hundred eleven billion, two million, one hundred twenty thousand, one hundred eleven".