1111020121010 has 8 divisors (see below), whose sum is σ = 1999836217836. Its totient is φ = 444408048400.

The previous prime is 1111020120989. The next prime is 1111020121063. The reversal of 1111020121010 is 101210201111.

It can be written as a sum of positive squares in 2 ways, for example, as 1095721152289 + 15298968721 = 1046767^2 + 123689^2 .

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1111020120982 and 1111020121000.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55551006041 + ... + 55551006060.

Almost surely, 2^{1111020121010} is an apocalyptic number.

1111020121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1111020121010 is a deficient number, since it is larger than the sum of its proper divisors (888816096826).

1111020121010 is a wasteful number, since it uses less digits than its factorization.

1111020121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111102012108.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1111020121010 its reverse (101210201111), we get a palindrome (1212230322121).

The spelling of 1111020121010 in words is "one trillion, one hundred eleven billion, twenty million, one hundred twenty-one thousand, ten".