1121011111010 has 32 divisors (see below), whose sum is σ = 2427452634240. Its totient is φ = 364117894272.

The previous prime is 1121011111009. The next prime is 1121011111021. The reversal of 1121011111010 is 101111101211.

It is a happy number.

It is a super-2 number, since 2×1121011111010² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1121011110982 and 1121011111000.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 421431419 + ... + 421434078.

It is an arithmetic number, because the mean of its divisors is an integer number (75857894820).

Almost surely, 2^{1121011111010} is an apocalyptic number.

1121011111010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1121011111010 is an abundant number, since it is smaller than the sum of its proper divisors (1306441523230).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1121011111010 is a wasteful number, since it uses less digits than its factorization.

1121011111010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842865530.

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 1121011111010 its reverse (101111101211), we get a palindrome (1222122212221).

The spelling of 1121011111010 in words is "one trillion, one hundred twenty-one billion, eleven million, one hundred eleven thousand, ten".