1111121020011 has 8 divisors (see below), whose sum is σ = 1486766917584. Its totient is φ = 738111234560.

The previous prime is 1111121019979. The next prime is 1111121020013. The reversal of 1111121020011 is 1100201211111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1111121020011 - 2⁵ = 1111121019979 is a prime.

It is a super-2 number, since 2×1111121020011² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1111121020013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 659027046 + ... + 659028731.

It is an arithmetic number, because the mean of its divisors is an integer number (185845864698).

Almost surely, 2^{1111121020011} is an apocalyptic number.

1111121020011 is a deficient number, since it is larger than the sum of its proper divisors (375645897573).

1111121020011 is a wasteful number, since it uses less digits than its factorization.

1111121020011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1318056061.

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

Adding to 1111121020011 its reverse (1100201211111), we get a palindrome (2211322231122).

The spelling of 1111121020011 in words is "one trillion, one hundred eleven billion, one hundred twenty-one million, twenty thousand, eleven".